Home / 28,447,440.57-39,257,587.67-15,394,700.12

Finding the Fourth Proportional to 28,447,440.57, 39,257,587.67 and 15,394,700.12

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Solution

The fourth proportional to 28,447,440.57, 39,257,587.67 and 15,394,700.12 is: 21,244,750.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447,440.57 : 39,257,587.67 = 15,394,700.12 : x
  2. Step 2: Convert to fraction form
    28,447,440.57/39,257,587.67 = 15,394,700.12/x
  3. Step 3: Cross multiply
    28,447,440.57x = 39,257,587.67 × 15,394,700.12
  4. Step 4: Simplify right side
    28,447,440.57x = 604,358,789,340,998.12
  5. Step 5: Solve for x
    x = 604,358,789,340,998.12/28,447,440.57
  6. Step 6: Final answer
    x = 21,244,750.92

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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.