Home / 12,889,838.10-17,787,569.43-7,088,601.90

Finding the Fourth Proportional to 12,889,838.10, 17,787,569.43 and 7,088,601.90

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Solution

The fourth proportional to 12,889,838.10, 17,787,569.43 and 7,088,601.90 is: 9,782,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,838.10 : 17,787,569.43 = 7,088,601.90 : x
  2. Step 2: Convert to fraction form
    12,889,838.10/17,787,569.43 = 7,088,601.90/x
  3. Step 3: Cross multiply
    12,889,838.10x = 17,787,569.43 × 7,088,601.90
  4. Step 4: Simplify right side
    12,889,838.10x = 126,088,998,457,879.92
  5. Step 5: Solve for x
    x = 126,088,998,457,879.92/12,889,838.10
  6. Step 6: Final answer
    x = 9,782,046.72

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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.