Home / 867,245,112.21-1,196,799,784.62-470,768,376.36

Finding the Fourth Proportional to 867,245,112.21, 1,196,799,784.62 and 470,768,376.36

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Solution

The fourth proportional to 867,245,112.21, 1,196,799,784.62 and 470,768,376.36 is: 649,661,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,245,112.21 : 1,196,799,784.62 = 470,768,376.36 : x
  2. Step 2: Convert to fraction form
    867,245,112.21/1,196,799,784.62 = 470,768,376.36/x
  3. Step 3: Cross multiply
    867,245,112.21x = 1,196,799,784.62 × 470,768,376.36
  4. Step 4: Simplify right side
    867,245,112.21x = 563,415,491,433,555,072
  5. Step 5: Solve for x
    x = 563,415,491,433,555,072/867,245,112.21
  6. Step 6: Final answer
    x = 649,661,189.78

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Double scale
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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.