Home / 71,745,580.83-99,002,585.64-39,953,348.60

Finding the Fourth Proportional to 71,745,580.83, 99,002,585.64 and 39,953,348.60

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Solution

The fourth proportional to 71,745,580.83, 99,002,585.64 and 39,953,348.60 is: 55,132,103.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,745,580.83 : 99,002,585.64 = 39,953,348.60 : x
  2. Step 2: Convert to fraction form
    71,745,580.83/99,002,585.64 = 39,953,348.60/x
  3. Step 3: Cross multiply
    71,745,580.83x = 99,002,585.64 × 39,953,348.60
  4. Step 4: Simplify right side
    71,745,580.83x = 3,955,484,815,881,261
  5. Step 5: Solve for x
    x = 3,955,484,815,881,261/71,745,580.83
  6. Step 6: Final answer
    x = 55,132,103.89

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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.