Home / 102,154,727.88-140,972,363.15-55,745,771.40

Finding the Fourth Proportional to 102,154,727.88, 140,972,363.15 and 55,745,771.40

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Solution

The fourth proportional to 102,154,727.88, 140,972,363.15 and 55,745,771.40 is: 76,928,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,154,727.88 : 140,972,363.15 = 55,745,771.40 : x
  2. Step 2: Convert to fraction form
    102,154,727.88/140,972,363.15 = 55,745,771.40/x
  3. Step 3: Cross multiply
    102,154,727.88x = 140,972,363.15 × 55,745,771.40
  4. Step 4: Simplify right side
    102,154,727.88x = 7,858,613,129,598,955
  5. Step 5: Solve for x
    x = 7,858,613,129,598,955/102,154,727.88
  6. Step 6: Final answer
    x = 76,928,530.80

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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.