Home / 13,161,209.28-18,162,127.68-7,281,060.64

Finding the Fourth Proportional to 13,161,209.28, 18,162,127.68 and 7,281,060.64

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Solution

The fourth proportional to 13,161,209.28, 18,162,127.68 and 7,281,060.64 is: 10,047,674.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161,209.28 : 18,162,127.68 = 7,281,060.64 : x
  2. Step 2: Convert to fraction form
    13,161,209.28/18,162,127.68 = 7,281,060.64/x
  3. Step 3: Cross multiply
    13,161,209.28x = 18,162,127.68 × 7,281,060.64
  4. Step 4: Simplify right side
    13,161,209.28x = 132,239,552,989,502.50
  5. Step 5: Solve for x
    x = 132,239,552,989,502.50/13,161,209.28
  6. Step 6: Final answer
    x = 10,047,674.96

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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.