Home / 90,394,764.87-124,739,478.27-49,141,296.39

Finding the Fourth Proportional to 90,394,764.87, 124,739,478.27 and 49,141,296.39

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Solution

The fourth proportional to 90,394,764.87, 124,739,478.27 and 49,141,296.39 is: 67,812,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,394,764.87 : 124,739,478.27 = 49,141,296.39 : x
  2. Step 2: Convert to fraction form
    90,394,764.87/124,739,478.27 = 49,141,296.39/x
  3. Step 3: Cross multiply
    90,394,764.87x = 124,739,478.27 × 49,141,296.39
  4. Step 4: Simplify right side
    90,394,764.87x = 6,129,859,673,200,034
  5. Step 5: Solve for x
    x = 6,129,859,673,200,034/90,394,764.87
  6. Step 6: Final answer
    x = 67,812,109.27

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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.