Home / 356,681,721,209.78-492,220,855,615.65-196,289,638,764.02

Finding the Fourth Proportional to 356,681,721,209.78, 492,220,855,615.65 and 196,289,638,764.02

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Solution

The fourth proportional to 356,681,721,209.78, 492,220,855,615.65 and 196,289,638,764.02 is: 270,879,745,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,681,721,209.78 : 492,220,855,615.65 = 196,289,638,764.02 : x
  2. Step 2: Convert to fraction form
    356,681,721,209.78/492,220,855,615.65 = 196,289,638,764.02/x
  3. Step 3: Cross multiply
    356,681,721,209.78x = 492,220,855,615.65 × 196,289,638,764.02
  4. Step 4: Simplify right side
    356,681,721,209.78x = 96,617,853,940,912,789,389,312
  5. Step 5: Solve for x
    x = 96,617,853,940,912,789,389,312/356,681,721,209.78
  6. Step 6: Final answer
    x = 270,879,745,710.57

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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.