Home / 87,488,870.31-120,738,309.28-50,319,160.94

Finding the Fourth Proportional to 87,488,870.31, 120,738,309.28 and 50,319,160.94

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Solution

The fourth proportional to 87,488,870.31, 120,738,309.28 and 50,319,160.94 is: 69,442,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,488,870.31 : 120,738,309.28 = 50,319,160.94 : x
  2. Step 2: Convert to fraction form
    87,488,870.31/120,738,309.28 = 50,319,160.94/x
  3. Step 3: Cross multiply
    87,488,870.31x = 120,738,309.28 × 50,319,160.94
  4. Step 4: Simplify right side
    87,488,870.31x = 6,075,450,416,459,864
  5. Step 5: Solve for x
    x = 6,075,450,416,459,864/87,488,870.31
  6. Step 6: Final answer
    x = 69,442,551.89

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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.