Home / 71,956,211.60-99,299,571.64-38,916,460.20

Finding the Fourth Proportional to 71,956,211.60, 99,299,571.64 and 38,916,460.20

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Solution

The fourth proportional to 71,956,211.60, 99,299,571.64 and 38,916,460.20 is: 53,704,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,956,211.60 : 99,299,571.64 = 38,916,460.20 : x
  2. Step 2: Convert to fraction form
    71,956,211.60/99,299,571.64 = 38,916,460.20/x
  3. Step 3: Cross multiply
    71,956,211.60x = 99,299,571.64 × 38,916,460.20
  4. Step 4: Simplify right side
    71,956,211.60x = 3,864,387,827,605,109
  5. Step 5: Solve for x
    x = 3,864,387,827,605,109/71,956,211.60
  6. Step 6: Final answer
    x = 53,704,714.88

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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.