Home / 431,622,433.60-647,433,650.40-386,272,801.60

Finding the Fourth Proportional to 431,622,433.60, 647,433,650.40 and 386,272,801.60

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Solution

The fourth proportional to 431,622,433.60, 647,433,650.40 and 386,272,801.60 is: 579,409,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,622,433.60 : 647,433,650.40 = 386,272,801.60 : x
  2. Step 2: Convert to fraction form
    431,622,433.60/647,433,650.40 = 386,272,801.60/x
  3. Step 3: Cross multiply
    431,622,433.60x = 647,433,650.40 × 386,272,801.60
  4. Step 4: Simplify right side
    431,622,433.60x = 250,086,009,990,122,976
  5. Step 5: Solve for x
    x = 250,086,009,990,122,976/431,622,433.60
  6. Step 6: Final answer
    x = 579,409,202.40

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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.