Home / 42,627,999.90-63,951,331.05-21,072,927.90

Finding the Fourth Proportional to 42,627,999.90, 63,951,331.05 and 21,072,927.90

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Solution

The fourth proportional to 42,627,999.90, 63,951,331.05 and 21,072,927.90 is: 31,614,004.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,627,999.90 : 63,951,331.05 = 21,072,927.90 : x
  2. Step 2: Convert to fraction form
    42,627,999.90/63,951,331.05 = 21,072,927.90/x
  3. Step 3: Cross multiply
    42,627,999.90x = 63,951,331.05 × 21,072,927.90
  4. Step 4: Simplify right side
    42,627,999.90x = 1,347,641,788,325,681.25
  5. Step 5: Solve for x
    x = 1,347,641,788,325,681.25/42,627,999.90
  6. Step 6: Final answer
    x = 31,614,004.68

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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.