Home / 54,128,915.12-81,189,289.04-17,239,314.40

Finding the Fourth Proportional to 54,128,915.12, 81,189,289.04 and 17,239,314.40

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Solution

The fourth proportional to 54,128,915.12, 81,189,289.04 and 17,239,314.40 is: 25,857,671.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,915.12 : 81,189,289.04 = 17,239,314.40 : x
  2. Step 2: Convert to fraction form
    54,128,915.12/81,189,289.04 = 17,239,314.40/x
  3. Step 3: Cross multiply
    54,128,915.12x = 81,189,289.04 × 17,239,314.40
  4. Step 4: Simplify right side
    54,128,915.12x = 1,399,647,679,673,034.25
  5. Step 5: Solve for x
    x = 1,399,647,679,673,034.25/54,128,915.12
  6. Step 6: Final answer
    x = 25,857,671.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.