Home / 398,573,638.80-597,860,458.20-367,962,637.20

Finding the Fourth Proportional to 398,573,638.80, 597,860,458.20 and 367,962,637.20

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Solution

The fourth proportional to 398,573,638.80, 597,860,458.20 and 367,962,637.20 is: 551,943,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,573,638.80 : 597,860,458.20 = 367,962,637.20 : x
  2. Step 2: Convert to fraction form
    398,573,638.80/597,860,458.20 = 367,962,637.20/x
  3. Step 3: Cross multiply
    398,573,638.80x = 597,860,458.20 × 367,962,637.20
  4. Step 4: Simplify right side
    398,573,638.80x = 219,990,310,876,872,384
  5. Step 5: Solve for x
    x = 219,990,310,876,872,384/398,573,638.80
  6. Step 6: Final answer
    x = 551,943,955.80

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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.