Home / 391,203,288.30-586,804,932.45-118,538,625.90

Finding the Fourth Proportional to 391,203,288.30, 586,804,932.45 and 118,538,625.90

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Solution

The fourth proportional to 391,203,288.30, 586,804,932.45 and 118,538,625.90 is: 177,807,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,203,288.30 : 586,804,932.45 = 118,538,625.90 : x
  2. Step 2: Convert to fraction form
    391,203,288.30/586,804,932.45 = 118,538,625.90/x
  3. Step 3: Cross multiply
    391,203,288.30x = 586,804,932.45 × 118,538,625.90
  4. Step 4: Simplify right side
    391,203,288.30x = 69,559,050,363,965,328
  5. Step 5: Solve for x
    x = 69,559,050,363,965,328/391,203,288.30
  6. Step 6: Final answer
    x = 177,807,938.85

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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.