Home / 527,179,205.84-790,760,006.49-128,341,979.87

Finding the Fourth Proportional to 527,179,205.84, 790,760,006.49 and 128,341,979.87

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Solution

The fourth proportional to 527,179,205.84, 790,760,006.49 and 128,341,979.87 is: 192,510,826.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,179,205.84 : 790,760,006.49 = 128,341,979.87 : x
  2. Step 2: Convert to fraction form
    527,179,205.84/790,760,006.49 = 128,341,979.87/x
  3. Step 3: Cross multiply
    527,179,205.84x = 790,760,006.49 × 128,341,979.87
  4. Step 4: Simplify right side
    527,179,205.84x = 101,487,704,834,940,656
  5. Step 5: Solve for x
    x = 101,487,704,834,940,656/527,179,205.84
  6. Step 6: Final answer
    x = 192,510,826.89

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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.