Home / 20,918,709.20-31,360,092.76-7,270,082.32

Finding the Fourth Proportional to 20,918,709.20, 31,360,092.76 and 7,270,082.32

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Solution

The fourth proportional to 20,918,709.20, 31,360,092.76 and 7,270,082.32 is: 10,898,877.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,918,709.20 : 31,360,092.76 = 7,270,082.32 : x
  2. Step 2: Convert to fraction form
    20,918,709.20/31,360,092.76 = 7,270,082.32/x
  3. Step 3: Cross multiply
    20,918,709.20x = 31,360,092.76 × 7,270,082.32
  4. Step 4: Simplify right side
    20,918,709.20x = 227,990,455,928,036.03
  5. Step 5: Solve for x
    x = 227,990,455,928,036.03/20,918,709.20
  6. Step 6: Final answer
    x = 10,898,877.83

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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.