Home / 388,304,539.40-582,456,809.10-111,955,219.40

Finding the Fourth Proportional to 388,304,539.40, 582,456,809.10 and 111,955,219.40

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Solution

The fourth proportional to 388,304,539.40, 582,456,809.10 and 111,955,219.40 is: 167,932,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,304,539.40 : 582,456,809.10 = 111,955,219.40 : x
  2. Step 2: Convert to fraction form
    388,304,539.40/582,456,809.10 = 111,955,219.40/x
  3. Step 3: Cross multiply
    388,304,539.40x = 582,456,809.10 × 111,955,219.40
  4. Step 4: Simplify right side
    388,304,539.40x = 65,209,079,853,814,424
  5. Step 5: Solve for x
    x = 65,209,079,853,814,424/388,304,539.40
  6. Step 6: Final answer
    x = 167,932,829.10

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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.