Home / 78,482,049.24-117,643,936.86-49,356,702.66

Finding the Fourth Proportional to 78,482,049.24, 117,643,936.86 and 49,356,702.66

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Solution

The fourth proportional to 78,482,049.24, 117,643,936.86 and 49,356,702.66 is: 73,985,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,482,049.24 : 117,643,936.86 = 49,356,702.66 : x
  2. Step 2: Convert to fraction form
    78,482,049.24/117,643,936.86 = 49,356,702.66/x
  3. Step 3: Cross multiply
    78,482,049.24x = 117,643,936.86 × 49,356,702.66
  4. Step 4: Simplify right side
    78,482,049.24x = 5,806,516,811,350,834
  5. Step 5: Solve for x
    x = 5,806,516,811,350,834/78,482,049.24
  6. Step 6: Final answer
    x = 73,985,285.39

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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.