Home / 638,538,420.10-957,807,630.15-638,538,420.10

Finding the Fourth Proportional to 638,538,420.10, 957,807,630.15 and 638,538,420.10

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Solution

The fourth proportional to 638,538,420.10, 957,807,630.15 and 638,538,420.10 is: 957,807,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,538,420.10 : 957,807,630.15 = 638,538,420.10 : x
  2. Step 2: Convert to fraction form
    638,538,420.10/957,807,630.15 = 638,538,420.10/x
  3. Step 3: Cross multiply
    638,538,420.10x = 957,807,630.15 × 638,538,420.10
  4. Step 4: Simplify right side
    638,538,420.10x = 611,596,970,915,706,112
  5. Step 5: Solve for x
    x = 611,596,970,915,706,112/638,538,420.10
  6. Step 6: Final answer
    x = 957,807,630.15

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.