Home / 20,818,598.17-31,234,872.44-7,181,157.84

Finding the Fourth Proportional to 20,818,598.17, 31,234,872.44 and 7,181,157.84

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Solution

The fourth proportional to 20,818,598.17, 31,234,872.44 and 7,181,157.84 is: 10,774,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,818,598.17 : 31,234,872.44 = 7,181,157.84 : x
  2. Step 2: Convert to fraction form
    20,818,598.17/31,234,872.44 = 7,181,157.84/x
  3. Step 3: Cross multiply
    20,818,598.17x = 31,234,872.44 × 7,181,157.84
  4. Step 4: Simplify right side
    20,818,598.17x = 224,302,549,103,905.94
  5. Step 5: Solve for x
    x = 224,302,549,103,905.94/20,818,598.17
  6. Step 6: Final answer
    x = 10,774,142.78

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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.