Home / 129,656,282.27-178,923,566.84-70,918,433.57

Finding the Fourth Proportional to 129,656,282.27, 178,923,566.84 and 70,918,433.57

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Solution

The fourth proportional to 129,656,282.27, 178,923,566.84 and 70,918,433.57 is: 97,866,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,656,282.27 : 178,923,566.84 = 70,918,433.57 : x
  2. Step 2: Convert to fraction form
    129,656,282.27/178,923,566.84 = 70,918,433.57/x
  3. Step 3: Cross multiply
    129,656,282.27x = 178,923,566.84 × 70,918,433.57
  4. Step 4: Simplify right side
    129,656,282.27x = 12,688,979,087,800,784
  5. Step 5: Solve for x
    x = 12,688,979,087,800,784/129,656,282.27
  6. Step 6: Final answer
    x = 97,866,288.21

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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.