Home / 42,172,693.20-63,259,039.80-39,781,208.70

Finding the Fourth Proportional to 42,172,693.20, 63,259,039.80 and 39,781,208.70

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Solution

The fourth proportional to 42,172,693.20, 63,259,039.80 and 39,781,208.70 is: 59,671,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,172,693.20 : 63,259,039.80 = 39,781,208.70 : x
  2. Step 2: Convert to fraction form
    42,172,693.20/63,259,039.80 = 39,781,208.70/x
  3. Step 3: Cross multiply
    42,172,693.20x = 63,259,039.80 × 39,781,208.70
  4. Step 4: Simplify right side
    42,172,693.20x = 2,516,521,064,445,406.50
  5. Step 5: Solve for x
    x = 2,516,521,064,445,406.50/42,172,693.20
  6. Step 6: Final answer
    x = 59,671,813.05

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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.