Home / 13,161,214.28-18,162,134.56-7,281,065.64

Finding the Fourth Proportional to 13,161,214.28, 18,162,134.56 and 7,281,065.64

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Solution

The fourth proportional to 13,161,214.28, 18,162,134.56 and 7,281,065.64 is: 10,047,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161,214.28 : 18,162,134.56 = 7,281,065.64 : x
  2. Step 2: Convert to fraction form
    13,161,214.28/18,162,134.56 = 7,281,065.64/x
  3. Step 3: Cross multiply
    13,161,214.28x = 18,162,134.56 × 7,281,065.64
  4. Step 4: Simplify right side
    13,161,214.28x = 132,239,693,893,872.50
  5. Step 5: Solve for x
    x = 132,239,693,893,872.50/13,161,214.28
  6. Step 6: Final answer
    x = 10,047,681.85

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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.