Home / 7,428,171.42-11,143,248.57-2,939,397.66

Finding the Fourth Proportional to 7,428,171.42, 11,143,248.57 and 2,939,397.66

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Solution

The fourth proportional to 7,428,171.42, 11,143,248.57 and 2,939,397.66 is: 4,409,488.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428,171.42 : 11,143,248.57 = 2,939,397.66 : x
  2. Step 2: Convert to fraction form
    7,428,171.42/11,143,248.57 = 2,939,397.66/x
  3. Step 3: Cross multiply
    7,428,171.42x = 11,143,248.57 × 2,939,397.66
  4. Step 4: Simplify right side
    7,428,171.42x = 32,754,438,771,456.35
  5. Step 5: Solve for x
    x = 32,754,438,771,456.35/7,428,171.42
  6. Step 6: Final answer
    x = 4,409,488.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.