Home / 28,636,089.76-39,517,654.42-15,583,442.11

Finding the Fourth Proportional to 28,636,089.76, 39,517,654.42 and 15,583,442.11

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Solution

The fourth proportional to 28,636,089.76, 39,517,654.42 and 15,583,442.11 is: 21,505,068.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,636,089.76 : 39,517,654.42 = 15,583,442.11 : x
  2. Step 2: Convert to fraction form
    28,636,089.76/39,517,654.42 = 15,583,442.11/x
  3. Step 3: Cross multiply
    28,636,089.76x = 39,517,654.42 × 15,583,442.11
  4. Step 4: Simplify right side
    28,636,089.76x = 615,821,080,053,479.38
  5. Step 5: Solve for x
    x = 615,821,080,053,479.38/28,636,089.76
  6. Step 6: Final answer
    x = 21,505,068.79

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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.