Home / 12,887,439.76-17,784,541.84-7,007,073.92

Finding the Fourth Proportional to 12,887,439.76, 17,784,541.84 and 7,007,073.92

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Solution

The fourth proportional to 12,887,439.76, 17,784,541.84 and 7,007,073.92 is: 9,669,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887,439.76 : 17,784,541.84 = 7,007,073.92 : x
  2. Step 2: Convert to fraction form
    12,887,439.76/17,784,541.84 = 7,007,073.92/x
  3. Step 3: Cross multiply
    12,887,439.76x = 17,784,541.84 × 7,007,073.92
  4. Step 4: Simplify right side
    12,887,439.76x = 124,617,599,306,212.81
  5. Step 5: Solve for x
    x = 124,617,599,306,212.81/12,887,439.76
  6. Step 6: Final answer
    x = 9,669,694.03

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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.