Home / 28,385,608.55-39,172,154.85-15,332,867.19

Finding the Fourth Proportional to 28,385,608.55, 39,172,154.85 and 15,332,867.19

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Solution

The fourth proportional to 28,385,608.55, 39,172,154.85 and 15,332,867.19 is: 21,159,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,608.55 : 39,172,154.85 = 15,332,867.19 : x
  2. Step 2: Convert to fraction form
    28,385,608.55/39,172,154.85 = 15,332,867.19/x
  3. Step 3: Cross multiply
    28,385,608.55x = 39,172,154.85 × 15,332,867.19
  4. Step 4: Simplify right side
    28,385,608.55x = 600,621,447,861,164.38
  5. Step 5: Solve for x
    x = 600,621,447,861,164.38/28,385,608.55
  6. Step 6: Final answer
    x = 21,159,364.86

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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.