Home / 87,105,696.45-120,209,032.97-47,411,310.03

Finding the Fourth Proportional to 87,105,696.45, 120,209,032.97 and 47,411,310.03

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Solution

The fourth proportional to 87,105,696.45, 120,209,032.97 and 47,411,310.03 is: 65,429,334.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,105,696.45 : 120,209,032.97 = 47,411,310.03 : x
  2. Step 2: Convert to fraction form
    87,105,696.45/120,209,032.97 = 47,411,310.03/x
  3. Step 3: Cross multiply
    87,105,696.45x = 120,209,032.97 × 47,411,310.03
  4. Step 4: Simplify right side
    87,105,696.45x = 5,699,267,729,709,060
  5. Step 5: Solve for x
    x = 5,699,267,729,709,060/87,105,696.45
  6. Step 6: Final answer
    x = 65,429,334.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.