Home / 13,565,621.75-18,720,553.71-7,454,443.91

Finding the Fourth Proportional to 13,565,621.75, 18,720,553.71 and 7,454,443.91

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Solution

The fourth proportional to 13,565,621.75, 18,720,553.71 and 7,454,443.91 is: 10,287,130.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565,621.75 : 18,720,553.71 = 7,454,443.91 : x
  2. Step 2: Convert to fraction form
    13,565,621.75/18,720,553.71 = 7,454,443.91/x
  3. Step 3: Cross multiply
    13,565,621.75x = 18,720,553.71 × 7,454,443.91
  4. Step 4: Simplify right side
    13,565,621.75x = 139,551,317,595,337.42
  5. Step 5: Solve for x
    x = 139,551,317,595,337.42/13,565,621.75
  6. Step 6: Final answer
    x = 10,287,130.23

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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.