Home / 78,732,067.60-118,098,101.40-21,230,151.40

Finding the Fourth Proportional to 78,732,067.60, 118,098,101.40 and 21,230,151.40

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Solution

The fourth proportional to 78,732,067.60, 118,098,101.40 and 21,230,151.40 is: 31,845,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,067.60 : 118,098,101.40 = 21,230,151.40 : x
  2. Step 2: Convert to fraction form
    78,732,067.60/118,098,101.40 = 21,230,151.40/x
  3. Step 3: Cross multiply
    78,732,067.60x = 118,098,101.40 × 21,230,151.40
  4. Step 4: Simplify right side
    78,732,067.60x = 2,507,240,572,774,552
  5. Step 5: Solve for x
    x = 2,507,240,572,774,552/78,732,067.60
  6. Step 6: Final answer
    x = 31,845,227.10

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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.