Home / 388,463,140.80-582,620,061.60-115,842,801.60

Finding the Fourth Proportional to 388,463,140.80, 582,620,061.60 and 115,842,801.60

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Solution

The fourth proportional to 388,463,140.80, 582,620,061.60 and 115,842,801.60 is: 173,741,941.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,463,140.80 : 582,620,061.60 = 115,842,801.60 : x
  2. Step 2: Convert to fraction form
    388,463,140.80/582,620,061.60 = 115,842,801.60/x
  3. Step 3: Cross multiply
    388,463,140.80x = 582,620,061.60 × 115,842,801.60
  4. Step 4: Simplify right side
    388,463,140.80x = 67,492,340,204,108,576
  5. Step 5: Solve for x
    x = 67,492,340,204,108,576/388,463,140.80
  6. Step 6: Final answer
    x = 173,741,941.29

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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.