Home / 83,135,998.40-124,703,997.60-47,304,190.40

Finding the Fourth Proportional to 83,135,998.40, 124,703,997.60 and 47,304,190.40

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Solution

The fourth proportional to 83,135,998.40, 124,703,997.60 and 47,304,190.40 is: 70,956,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,135,998.40 : 124,703,997.60 = 47,304,190.40 : x
  2. Step 2: Convert to fraction form
    83,135,998.40/124,703,997.60 = 47,304,190.40/x
  3. Step 3: Cross multiply
    83,135,998.40x = 124,703,997.60 × 47,304,190.40
  4. Step 4: Simplify right side
    83,135,998.40x = 5,899,021,646,111,543
  5. Step 5: Solve for x
    x = 5,899,021,646,111,543/83,135,998.40
  6. Step 6: Final answer
    x = 70,956,285.60

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Similar ratio
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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.