Home / 129,555,584.97-178,786,715.72-70,818,482.76

Finding the Fourth Proportional to 129,555,584.97, 178,786,715.72 and 70,818,482.76

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Solution

The fourth proportional to 129,555,584.97, 178,786,715.72 and 70,818,482.76 is: 97,729,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,555,584.97 : 178,786,715.72 = 70,818,482.76 : x
  2. Step 2: Convert to fraction form
    129,555,584.97/178,786,715.72 = 70,818,482.76/x
  3. Step 3: Cross multiply
    129,555,584.97x = 178,786,715.72 × 70,818,482.76
  4. Step 4: Simplify right side
    129,555,584.97x = 12,661,403,944,579,750
  5. Step 5: Solve for x
    x = 12,661,403,944,579,750/129,555,584.97
  6. Step 6: Final answer
    x = 97,729,510.83

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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.