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Finding the Fourth Proportional to 88,137,311.40, 123,519,781.80 and 88,137,311.40

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Solution

The fourth proportional to 88,137,311.40, 123,519,781.80 and 88,137,311.40 is: 123,519,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,137,311.40 : 123,519,781.80 = 88,137,311.40 : x
  2. Step 2: Convert to fraction form
    88,137,311.40/123,519,781.80 = 88,137,311.40/x
  3. Step 3: Cross multiply
    88,137,311.40x = 123,519,781.80 × 88,137,311.40
  4. Step 4: Simplify right side
    88,137,311.40x = 10,886,701,472,566,652
  5. Step 5: Solve for x
    x = 10,886,701,472,566,652/88,137,311.40
  6. Step 6: Final answer
    x = 123,519,781.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.