Home / 129,656,283.27-178,923,568.21-70,918,434.57

Finding the Fourth Proportional to 129,656,283.27, 178,923,568.21 and 70,918,434.57

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Solution

The fourth proportional to 129,656,283.27, 178,923,568.21 and 70,918,434.57 is: 97,866,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,656,283.27 : 178,923,568.21 = 70,918,434.57 : x
  2. Step 2: Convert to fraction form
    129,656,283.27/178,923,568.21 = 70,918,434.57/x
  3. Step 3: Cross multiply
    129,656,283.27x = 178,923,568.21 × 70,918,434.57
  4. Step 4: Simplify right side
    129,656,283.27x = 12,688,979,365,131,816
  5. Step 5: Solve for x
    x = 12,688,979,365,131,816/129,656,283.27
  6. Step 6: Final answer
    x = 97,866,289.59

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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.