Home / 28,385,642.46-39,172,181.13-15,332,902.05

Finding the Fourth Proportional to 28,385,642.46, 39,172,181.13 and 15,332,902.05

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Solution

The fourth proportional to 28,385,642.46, 39,172,181.13 and 15,332,902.05 is: 21,159,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,642.46 : 39,172,181.13 = 15,332,902.05 : x
  2. Step 2: Convert to fraction form
    28,385,642.46/39,172,181.13 = 15,332,902.05/x
  3. Step 3: Cross multiply
    28,385,642.46x = 39,172,181.13 × 15,332,902.05
  4. Step 4: Simplify right side
    28,385,642.46x = 600,623,216,351,148.38
  5. Step 5: Solve for x
    x = 600,623,216,351,148.38/28,385,642.46
  6. Step 6: Final answer
    x = 21,159,401.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.