Home / 47,918,755.28-66,141,447-28,346,447.72

Finding the Fourth Proportional to 47,918,755.28, 66,141,447 and 28,346,447.72

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Solution

The fourth proportional to 47,918,755.28, 66,141,447 and 28,346,447.72 is: 39,126,122.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,918,755.28 : 66,141,447 = 28,346,447.72 : x
  2. Step 2: Convert to fraction form
    47,918,755.28/66,141,447 = 28,346,447.72/x
  3. Step 3: Cross multiply
    47,918,755.28x = 66,141,447 × 28,346,447.72
  4. Step 4: Simplify right side
    47,918,755.28x = 1,874,875,069,510,650.75
  5. Step 5: Solve for x
    x = 1,874,875,069,510,650.75/47,918,755.28
  6. Step 6: Final answer
    x = 39,126,122.09

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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.