Home / 20,818,595.17-31,234,867.94-7,181,154.84

Finding the Fourth Proportional to 20,818,595.17, 31,234,867.94 and 7,181,154.84

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Solution

The fourth proportional to 20,818,595.17, 31,234,867.94 and 7,181,154.84 is: 10,774,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,818,595.17 : 31,234,867.94 = 7,181,154.84 : x
  2. Step 2: Convert to fraction form
    20,818,595.17/31,234,867.94 = 7,181,154.84/x
  3. Step 3: Cross multiply
    20,818,595.17x = 31,234,867.94 × 7,181,154.84
  4. Step 4: Simplify right side
    20,818,595.17x = 224,302,423,084,091.84
  5. Step 5: Solve for x
    x = 224,302,423,084,091.84/20,818,595.17
  6. Step 6: Final answer
    x = 10,774,138.28

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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.