Home / 28,732,275.50-39,651,382.40-15,680,373.62

Finding the Fourth Proportional to 28,732,275.50, 39,651,382.40 and 15,680,373.62

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Solution

The fourth proportional to 28,732,275.50, 39,651,382.40 and 15,680,373.62 is: 21,639,375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732,275.50 : 39,651,382.40 = 15,680,373.62 : x
  2. Step 2: Convert to fraction form
    28,732,275.50/39,651,382.40 = 15,680,373.62/x
  3. Step 3: Cross multiply
    28,732,275.50x = 39,651,382.40 × 15,680,373.62
  4. Step 4: Simplify right side
    28,732,275.50x = 621,748,490,581,492.25
  5. Step 5: Solve for x
    x = 621,748,490,581,492.25/28,732,275.50
  6. Step 6: Final answer
    x = 21,639,375.22

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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.