Home / 86,292,049.56-129,420,617.22-31,685,893.08

Finding the Fourth Proportional to 86,292,049.56, 129,420,617.22 and 31,685,893.08

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Solution

The fourth proportional to 86,292,049.56, 129,420,617.22 and 31,685,893.08 is: 47,522,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,292,049.56 : 129,420,617.22 = 31,685,893.08 : x
  2. Step 2: Convert to fraction form
    86,292,049.56/129,420,617.22 = 31,685,893.08/x
  3. Step 3: Cross multiply
    86,292,049.56x = 129,420,617.22 × 31,685,893.08
  4. Step 4: Simplify right side
    86,292,049.56x = 4,100,807,839,580,526.50
  5. Step 5: Solve for x
    x = 4,100,807,839,580,526.50/86,292,049.56
  6. Step 6: Final answer
    x = 47,522,429.48

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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.