Home / 78,388,459.56-108,178,856.44-43,108,946.92

Finding the Fourth Proportional to 78,388,459.56, 108,178,856.44 and 43,108,946.92

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Solution

The fourth proportional to 78,388,459.56, 108,178,856.44 and 43,108,946.92 is: 59,491,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,388,459.56 : 108,178,856.44 = 43,108,946.92 : x
  2. Step 2: Convert to fraction form
    78,388,459.56/108,178,856.44 = 43,108,946.92/x
  3. Step 3: Cross multiply
    78,388,459.56x = 108,178,856.44 × 43,108,946.92
  4. Step 4: Simplify right side
    78,388,459.56x = 4,663,476,580,165,711
  5. Step 5: Solve for x
    x = 4,663,476,580,165,711/78,388,459.56
  6. Step 6: Final answer
    x = 59,491,876.82

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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.