Home / 20,747,898.14-31,123,341.88-7,968,402.86

Finding the Fourth Proportional to 20,747,898.14, 31,123,341.88 and 7,968,402.86

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Solution

The fourth proportional to 20,747,898.14, 31,123,341.88 and 7,968,402.86 is: 11,953,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,898.14 : 31,123,341.88 = 7,968,402.86 : x
  2. Step 2: Convert to fraction form
    20,747,898.14/31,123,341.88 = 7,968,402.86/x
  3. Step 3: Cross multiply
    20,747,898.14x = 31,123,341.88 × 7,968,402.86
  4. Step 4: Simplify right side
    20,747,898.14x = 248,003,326,449,349.78
  5. Step 5: Solve for x
    x = 248,003,326,449,349.78/20,747,898.14
  6. Step 6: Final answer
    x = 11,953,178.33

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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.