Home / 87,333,431.40-131,000,147.10-81,664,727.40

Finding the Fourth Proportional to 87,333,431.40, 131,000,147.10 and 81,664,727.40

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Solution

The fourth proportional to 87,333,431.40, 131,000,147.10 and 81,664,727.40 is: 122,497,091.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,333,431.40 : 131,000,147.10 = 81,664,727.40 : x
  2. Step 2: Convert to fraction form
    87,333,431.40/131,000,147.10 = 81,664,727.40/x
  3. Step 3: Cross multiply
    87,333,431.40x = 131,000,147.10 × 81,664,727.40
  4. Step 4: Simplify right side
    87,333,431.40x = 10,698,091,302,281,400
  5. Step 5: Solve for x
    x = 10,698,091,302,281,400/87,333,431.40
  6. Step 6: Final answer
    x = 122,497,091.10

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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.