Home / 140,454,005.70-210,681,008.55-72,429,557.70

Finding the Fourth Proportional to 140,454,005.70, 210,681,008.55 and 72,429,557.70

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Solution

The fourth proportional to 140,454,005.70, 210,681,008.55 and 72,429,557.70 is: 108,644,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,454,005.70 : 210,681,008.55 = 72,429,557.70 : x
  2. Step 2: Convert to fraction form
    140,454,005.70/210,681,008.55 = 72,429,557.70/x
  3. Step 3: Cross multiply
    140,454,005.70x = 210,681,008.55 × 72,429,557.70
  4. Step 4: Simplify right side
    140,454,005.70x = 15,259,532,265,066,420
  5. Step 5: Solve for x
    x = 15,259,532,265,066,420/140,454,005.70
  6. Step 6: Final answer
    x = 108,644,336.55

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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.