Home / 13,565,639.28-18,720,577.89-7,454,461.44

Finding the Fourth Proportional to 13,565,639.28, 18,720,577.89 and 7,454,461.44

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Solution

The fourth proportional to 13,565,639.28, 18,720,577.89 and 7,454,461.44 is: 10,287,154.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565,639.28 : 18,720,577.89 = 7,454,461.44 : x
  2. Step 2: Convert to fraction form
    13,565,639.28/18,720,577.89 = 7,454,461.44/x
  3. Step 3: Cross multiply
    13,565,639.28x = 18,720,577.89 × 7,454,461.44
  4. Step 4: Simplify right side
    13,565,639.28x = 139,551,826,015,521.58
  5. Step 5: Solve for x
    x = 139,551,826,015,521.58/13,565,639.28
  6. Step 6: Final answer
    x = 10,287,154.42

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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.