Home / 28,636,136.78-39,517,875.19-15,759,080.78

Finding the Fourth Proportional to 28,636,136.78, 39,517,875.19 and 15,759,080.78

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Solution

The fourth proportional to 28,636,136.78, 39,517,875.19 and 15,759,080.78 is: 21,747,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,636,136.78 : 39,517,875.19 = 15,759,080.78 : x
  2. Step 2: Convert to fraction form
    28,636,136.78/39,517,875.19 = 15,759,080.78/x
  3. Step 3: Cross multiply
    28,636,136.78x = 39,517,875.19 × 15,759,080.78
  4. Step 4: Simplify right side
    28,636,136.78x = 622,765,387,373,167.75
  5. Step 5: Solve for x
    x = 622,765,387,373,167.75/28,636,136.78
  6. Step 6: Final answer
    x = 21,747,535.02

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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.