Home / 140,435,862.30-210,653,793.45-72,411,414.30

Finding the Fourth Proportional to 140,435,862.30, 210,653,793.45 and 72,411,414.30

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Solution

The fourth proportional to 140,435,862.30, 210,653,793.45 and 72,411,414.30 is: 108,617,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,435,862.30 : 210,653,793.45 = 72,411,414.30 : x
  2. Step 2: Convert to fraction form
    140,435,862.30/210,653,793.45 = 72,411,414.30/x
  3. Step 3: Cross multiply
    140,435,862.30x = 210,653,793.45 × 72,411,414.30
  4. Step 4: Simplify right side
    140,435,862.30x = 15,253,739,111,374,574
  5. Step 5: Solve for x
    x = 15,253,739,111,374,574/140,435,862.30
  6. Step 6: Final answer
    x = 108,617,121.45

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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.