Home / 82,987,331.40-124,480,997.10-77,318,627.40

Finding the Fourth Proportional to 82,987,331.40, 124,480,997.10 and 77,318,627.40

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Solution

The fourth proportional to 82,987,331.40, 124,480,997.10 and 77,318,627.40 is: 115,977,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,987,331.40 : 124,480,997.10 = 77,318,627.40 : x
  2. Step 2: Convert to fraction form
    82,987,331.40/124,480,997.10 = 77,318,627.40/x
  3. Step 3: Cross multiply
    82,987,331.40x = 124,480,997.10 × 77,318,627.40
  4. Step 4: Simplify right side
    82,987,331.40x = 9,624,699,833,155,380
  5. Step 5: Solve for x
    x = 9,624,699,833,155,380/82,987,331.40
  6. Step 6: Final answer
    x = 115,977,941.10

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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.