Home / 356,681,720,466.77-492,220,854,590.18-196,289,638,020.76

Finding the Fourth Proportional to 356,681,720,466.77, 492,220,854,590.18 and 196,289,638,020.76

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Solution

The fourth proportional to 356,681,720,466.77, 492,220,854,590.18 and 196,289,638,020.76 is: 270,879,744,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,681,720,466.77 : 492,220,854,590.18 = 196,289,638,020.76 : x
  2. Step 2: Convert to fraction form
    356,681,720,466.77/492,220,854,590.18 = 196,289,638,020.76/x
  3. Step 3: Cross multiply
    356,681,720,466.77x = 492,220,854,590.18 × 196,289,638,020.76
  4. Step 4: Simplify right side
    356,681,720,466.77x = 96,617,853,373,775,578,398,720
  5. Step 5: Solve for x
    x = 96,617,853,373,775,578,398,720/356,681,720,466.77
  6. Step 6: Final answer
    x = 270,879,744,684.81

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Double scale
Find fourth proportional to 356,681,720,467.77, 492,220,854,591.56 and 196,289,638,021.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.