Home / 140,454,601.20-210,681,901.80-72,430,153.20

Finding the Fourth Proportional to 140,454,601.20, 210,681,901.80 and 72,430,153.20

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Solution

The fourth proportional to 140,454,601.20, 210,681,901.80 and 72,430,153.20 is: 108,645,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,454,601.20 : 210,681,901.80 = 72,430,153.20 : x
  2. Step 2: Convert to fraction form
    140,454,601.20/210,681,901.80 = 72,430,153.20/x
  3. Step 3: Cross multiply
    140,454,601.20x = 210,681,901.80 × 72,430,153.20
  4. Step 4: Simplify right side
    140,454,601.20x = 15,259,722,423,841,358
  5. Step 5: Solve for x
    x = 15,259,722,423,841,358/140,454,601.20
  6. Step 6: Final answer
    x = 108,645,229.80

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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.