Home / 13,311,949.12-18,368,909.04-7,510,392.16

Finding the Fourth Proportional to 13,311,949.12, 18,368,909.04 and 7,510,392.16

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Solution

The fourth proportional to 13,311,949.12, 18,368,909.04 and 7,510,392.16 is: 10,363,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311,949.12 : 18,368,909.04 = 7,510,392.16 : x
  2. Step 2: Convert to fraction form
    13,311,949.12/18,368,909.04 = 7,510,392.16/x
  3. Step 3: Cross multiply
    13,311,949.12x = 18,368,909.04 × 7,510,392.16
  4. Step 4: Simplify right side
    13,311,949.12x = 137,957,710,441,769.12
  5. Step 5: Solve for x
    x = 137,957,710,441,769.12/13,311,949.12
  6. Step 6: Final answer
    x = 10,363,449.35

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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.