Home / 82,728,220.60-124,092,330.90-54,987,000.40

Finding the Fourth Proportional to 82,728,220.60, 124,092,330.90 and 54,987,000.40

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Solution

The fourth proportional to 82,728,220.60, 124,092,330.90 and 54,987,000.40 is: 82,480,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,728,220.60 : 124,092,330.90 = 54,987,000.40 : x
  2. Step 2: Convert to fraction form
    82,728,220.60/124,092,330.90 = 54,987,000.40/x
  3. Step 3: Cross multiply
    82,728,220.60x = 124,092,330.90 × 54,987,000.40
  4. Step 4: Simplify right side
    82,728,220.60x = 6,823,465,048,835,233
  5. Step 5: Solve for x
    x = 6,823,465,048,835,233/82,728,220.60
  6. Step 6: Final answer
    x = 82,480,500.60

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Double scale
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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.