Home / 431,654,087.60-647,481,131.40-386,304,455.60

Finding the Fourth Proportional to 431,654,087.60, 647,481,131.40 and 386,304,455.60

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Solution

The fourth proportional to 431,654,087.60, 647,481,131.40 and 386,304,455.60 is: 579,456,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,654,087.60 : 647,481,131.40 = 386,304,455.60 : x
  2. Step 2: Convert to fraction form
    431,654,087.60/647,481,131.40 = 386,304,455.60/x
  3. Step 3: Cross multiply
    431,654,087.60x = 647,481,131.40 × 386,304,455.60
  4. Step 4: Simplify right side
    431,654,087.60x = 250,124,845,976,749,088
  5. Step 5: Solve for x
    x = 250,124,845,976,749,088/431,654,087.60
  6. Step 6: Final answer
    x = 579,456,683.40

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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.