Home / 64,686,782.87-89,257,229.12-38,221,449.66

Finding the Fourth Proportional to 64,686,782.87, 89,257,229.12 and 38,221,449.66

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Solution

The fourth proportional to 64,686,782.87, 89,257,229.12 and 38,221,449.66 is: 52,739,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,686,782.87 : 89,257,229.12 = 38,221,449.66 : x
  2. Step 2: Convert to fraction form
    64,686,782.87/89,257,229.12 = 38,221,449.66/x
  3. Step 3: Cross multiply
    64,686,782.87x = 89,257,229.12 × 38,221,449.66
  4. Step 4: Simplify right side
    64,686,782.87x = 3,411,540,689,696,719.50
  5. Step 5: Solve for x
    x = 3,411,540,689,696,719.50/64,686,782.87
  6. Step 6: Final answer
    x = 52,739,377.95

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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.