Home / 20,995,780.52-31,493,670.76-5,039,428.52

Finding the Fourth Proportional to 20,995,780.52, 31,493,670.76 and 5,039,428.52

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Solution

The fourth proportional to 20,995,780.52, 31,493,670.76 and 5,039,428.52 is: 7,559,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995,780.52 : 31,493,670.76 = 5,039,428.52 : x
  2. Step 2: Convert to fraction form
    20,995,780.52/31,493,670.76 = 5,039,428.52/x
  3. Step 3: Cross multiply
    20,995,780.52x = 31,493,670.76 × 5,039,428.52
  4. Step 4: Simplify right side
    20,995,780.52x = 158,710,102,627,434.06
  5. Step 5: Solve for x
    x = 158,710,102,627,434.06/20,995,780.52
  6. Step 6: Final answer
    x = 7,559,142.78

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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.