Home / 20,681,502.76-31,036,423.74-7,218,330.76

Finding the Fourth Proportional to 20,681,502.76, 31,036,423.74 and 7,218,330.76

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Solution

The fourth proportional to 20,681,502.76, 31,036,423.74 and 7,218,330.76 is: 10,832,441.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,502.76 : 31,036,423.74 = 7,218,330.76 : x
  2. Step 2: Convert to fraction form
    20,681,502.76/31,036,423.74 = 7,218,330.76/x
  3. Step 3: Cross multiply
    20,681,502.76x = 31,036,423.74 × 7,218,330.76
  4. Step 4: Simplify right side
    20,681,502.76x = 224,031,172,162,836.22
  5. Step 5: Solve for x
    x = 224,031,172,162,836.22/20,681,502.76
  6. Step 6: Final answer
    x = 10,832,441.66

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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.