Home / 166,478,290.38-249,741,362.72-51,471,800.78

Finding the Fourth Proportional to 166,478,290.38, 249,741,362.72 and 51,471,800.78

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Solution

The fourth proportional to 166,478,290.38, 249,741,362.72 and 51,471,800.78 is: 77,215,098.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,478,290.38 : 249,741,362.72 = 51,471,800.78 : x
  2. Step 2: Convert to fraction form
    166,478,290.38/249,741,362.72 = 51,471,800.78/x
  3. Step 3: Cross multiply
    166,478,290.38x = 249,741,362.72 × 51,471,800.78
  4. Step 4: Simplify right side
    166,478,290.38x = 12,854,637,668,449,560
  5. Step 5: Solve for x
    x = 12,854,637,668,449,560/166,478,290.38
  6. Step 6: Final answer
    x = 77,215,098.97

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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.