Home / 86,228,138.80-129,129,631.80-57,317,748.40

Finding the Fourth Proportional to 86,228,138.80, 129,129,631.80 and 57,317,748.40

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Solution

The fourth proportional to 86,228,138.80, 129,129,631.80 and 57,317,748.40 is: 85,835,318.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,228,138.80 : 129,129,631.80 = 57,317,748.40 : x
  2. Step 2: Convert to fraction form
    86,228,138.80/129,129,631.80 = 57,317,748.40/x
  3. Step 3: Cross multiply
    86,228,138.80x = 129,129,631.80 × 57,317,748.40
  4. Step 4: Simplify right side
    86,228,138.80x = 7,401,419,746,497,039
  5. Step 5: Solve for x
    x = 7,401,419,746,497,039/86,228,138.80
  6. Step 6: Final answer
    x = 85,835,318.37

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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.