Home / 87,010,762.80-130,404,169.80-66,715,402.80

Finding the Fourth Proportional to 87,010,762.80, 130,404,169.80 and 66,715,402.80

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Solution

The fourth proportional to 87,010,762.80, 130,404,169.80 and 66,715,402.80 is: 99,987,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,010,762.80 : 130,404,169.80 = 66,715,402.80 : x
  2. Step 2: Convert to fraction form
    87,010,762.80/130,404,169.80 = 66,715,402.80/x
  3. Step 3: Cross multiply
    87,010,762.80x = 130,404,169.80 × 66,715,402.80
  4. Step 4: Simplify right side
    87,010,762.80x = 8,699,966,715,006,595
  5. Step 5: Solve for x
    x = 8,699,966,715,006,595/87,010,762.80
  6. Step 6: Final answer
    x = 99,987,247.96

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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.