Home / 78,312,343.70-117,468,515.55-58,156,951.70

Finding the Fourth Proportional to 78,312,343.70, 117,468,515.55 and 58,156,951.70

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Solution

The fourth proportional to 78,312,343.70, 117,468,515.55 and 58,156,951.70 is: 87,235,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,343.70 : 117,468,515.55 = 58,156,951.70 : x
  2. Step 2: Convert to fraction form
    78,312,343.70/117,468,515.55 = 58,156,951.70/x
  3. Step 3: Cross multiply
    78,312,343.70x = 117,468,515.55 × 58,156,951.70
  4. Step 4: Simplify right side
    78,312,343.70x = 6,831,610,785,112,049
  5. Step 5: Solve for x
    x = 6,831,610,785,112,049/78,312,343.70
  6. Step 6: Final answer
    x = 87,235,427.55

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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.