Home / 9,138,983.42-12,611,935.05-5,008,981.52

Finding the Fourth Proportional to 9,138,983.42, 12,611,935.05 and 5,008,981.52

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Solution

The fourth proportional to 9,138,983.42, 12,611,935.05 and 5,008,981.52 is: 6,912,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138,983.42 : 12,611,935.05 = 5,008,981.52 : x
  2. Step 2: Convert to fraction form
    9,138,983.42/12,611,935.05 = 5,008,981.52/x
  3. Step 3: Cross multiply
    9,138,983.42x = 12,611,935.05 × 5,008,981.52
  4. Step 4: Simplify right side
    9,138,983.42x = 63,172,949,596,890.27
  5. Step 5: Solve for x
    x = 63,172,949,596,890.27/9,138,983.42
  6. Step 6: Final answer
    x = 6,912,470.10

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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.