Home / 78,492,864.92-117,750,068.96-26,663,552.87

Finding the Fourth Proportional to 78,492,864.92, 117,750,068.96 and 26,663,552.87

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Solution

The fourth proportional to 78,492,864.92, 117,750,068.96 and 26,663,552.87 is: 39,998,988.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,492,864.92 : 117,750,068.96 = 26,663,552.87 : x
  2. Step 2: Convert to fraction form
    78,492,864.92/117,750,068.96 = 26,663,552.87/x
  3. Step 3: Cross multiply
    78,492,864.92x = 117,750,068.96 × 26,663,552.87
  4. Step 4: Simplify right side
    78,492,864.92x = 3,139,635,188,439,037.50
  5. Step 5: Solve for x
    x = 3,139,635,188,439,037.50/78,492,864.92
  6. Step 6: Final answer
    x = 39,998,988.34

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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.