Home / 42,799,867.10-64,204,671.99-15,519,008.78

Finding the Fourth Proportional to 42,799,867.10, 64,204,671.99 and 15,519,008.78

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Solution

The fourth proportional to 42,799,867.10, 64,204,671.99 and 15,519,008.78 is: 23,280,279.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,799,867.10 : 64,204,671.99 = 15,519,008.78 : x
  2. Step 2: Convert to fraction form
    42,799,867.10/64,204,671.99 = 15,519,008.78/x
  3. Step 3: Cross multiply
    42,799,867.10x = 64,204,671.99 × 15,519,008.78
  4. Step 4: Simplify right side
    42,799,867.10x = 996,392,868,329,830
  5. Step 5: Solve for x
    x = 996,392,868,329,830/42,799,867.10
  6. Step 6: Final answer
    x = 23,280,279.49

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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.