Home / 86,292,089.56-129,420,677.20-31,685,933.08

Finding the Fourth Proportional to 86,292,089.56, 129,420,677.20 and 31,685,933.08

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Solution

The fourth proportional to 86,292,089.56, 129,420,677.20 and 31,685,933.08 is: 47,522,489.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,292,089.56 : 129,420,677.20 = 31,685,933.08 : x
  2. Step 2: Convert to fraction form
    86,292,089.56/129,420,677.20 = 31,685,933.08/x
  3. Step 3: Cross multiply
    86,292,089.56x = 129,420,677.20 × 31,685,933.08
  4. Step 4: Simplify right side
    86,292,089.56x = 4,100,814,916,927,481.50
  5. Step 5: Solve for x
    x = 4,100,814,916,927,481.50/86,292,089.56
  6. Step 6: Final answer
    x = 47,522,489.46

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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.