Home / 393,986,468.40-590,979,702.60-230,727,793.20

Finding the Fourth Proportional to 393,986,468.40, 590,979,702.60 and 230,727,793.20

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Solution

The fourth proportional to 393,986,468.40, 590,979,702.60 and 230,727,793.20 is: 346,091,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,986,468.40 : 590,979,702.60 = 230,727,793.20 : x
  2. Step 2: Convert to fraction form
    393,986,468.40/590,979,702.60 = 230,727,793.20/x
  3. Step 3: Cross multiply
    393,986,468.40x = 590,979,702.60 × 230,727,793.20
  4. Step 4: Simplify right side
    393,986,468.40x = 136,355,442,606,890,304
  5. Step 5: Solve for x
    x = 136,355,442,606,890,304/393,986,468.40
  6. Step 6: Final answer
    x = 346,091,689.80

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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.