Home / 527,498,140.38-728,079,718.68-358,238,768.52

Finding the Fourth Proportional to 527,498,140.38, 728,079,718.68 and 358,238,768.52

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Solution

The fourth proportional to 527,498,140.38, 728,079,718.68 and 358,238,768.52 is: 494,459,338.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,498,140.38 : 728,079,718.68 = 358,238,768.52 : x
  2. Step 2: Convert to fraction form
    527,498,140.38/728,079,718.68 = 358,238,768.52/x
  3. Step 3: Cross multiply
    527,498,140.38x = 728,079,718.68 × 358,238,768.52
  4. Step 4: Simplify right side
    527,498,140.38x = 260,826,381,804,311,200
  5. Step 5: Solve for x
    x = 260,826,381,804,311,200/527,498,140.38
  6. Step 6: Final answer
    x = 494,459,338.98

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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.