Home / 81,612,127.35-122,418,191.04-81,612,127.35

Finding the Fourth Proportional to 81,612,127.35, 122,418,191.04 and 81,612,127.35

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Solution

The fourth proportional to 81,612,127.35, 122,418,191.04 and 81,612,127.35 is: 122,418,191.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,612,127.35 : 122,418,191.04 = 81,612,127.35 : x
  2. Step 2: Convert to fraction form
    81,612,127.35/122,418,191.04 = 81,612,127.35/x
  3. Step 3: Cross multiply
    81,612,127.35x = 122,418,191.04 × 81,612,127.35
  4. Step 4: Simplify right side
    81,612,127.35x = 9,990,808,997,113,108
  5. Step 5: Solve for x
    x = 9,990,808,997,113,108/81,612,127.35
  6. Step 6: Final answer
    x = 122,418,191.04

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Double scale
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1.5x scale

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.