Home / 42,627,998.40-63,951,328.80-21,072,926.40

Finding the Fourth Proportional to 42,627,998.40, 63,951,328.80 and 21,072,926.40

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Solution

The fourth proportional to 42,627,998.40, 63,951,328.80 and 21,072,926.40 is: 31,614,002.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,627,998.40 : 63,951,328.80 = 21,072,926.40 : x
  2. Step 2: Convert to fraction form
    42,627,998.40/63,951,328.80 = 21,072,926.40/x
  3. Step 3: Cross multiply
    42,627,998.40x = 63,951,328.80 × 21,072,926.40
  4. Step 4: Simplify right side
    42,627,998.40x = 1,347,641,644,984,600.25
  5. Step 5: Solve for x
    x = 1,347,641,644,984,600.25/42,627,998.40
  6. Step 6: Final answer
    x = 31,614,002.43

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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.