Home / 28,732,272.50-39,651,378.25-15,680,370.61

Finding the Fourth Proportional to 28,732,272.50, 39,651,378.25 and 15,680,370.61

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Solution

The fourth proportional to 28,732,272.50, 39,651,378.25 and 15,680,370.61 is: 21,639,371.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732,272.50 : 39,651,378.25 = 15,680,370.61 : x
  2. Step 2: Convert to fraction form
    28,732,272.50/39,651,378.25 = 15,680,370.61/x
  3. Step 3: Cross multiply
    28,732,272.50x = 39,651,378.25 × 15,680,370.61
  4. Step 4: Simplify right side
    28,732,272.50x = 621,748,306,157,293.25
  5. Step 5: Solve for x
    x = 621,748,306,157,293.25/28,732,272.50
  6. Step 6: Final answer
    x = 21,639,371.06

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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.