Home / 671,490,203.20-1,007,235,304.80-398,720,564.80

Finding the Fourth Proportional to 671,490,203.20, 1,007,235,304.80 and 398,720,564.80

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Solution

The fourth proportional to 671,490,203.20, 1,007,235,304.80 and 398,720,564.80 is: 598,080,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,490,203.20 : 1,007,235,304.80 = 398,720,564.80 : x
  2. Step 2: Convert to fraction form
    671,490,203.20/1,007,235,304.80 = 398,720,564.80/x
  3. Step 3: Cross multiply
    671,490,203.20x = 1,007,235,304.80 × 398,720,564.80
  4. Step 4: Simplify right side
    671,490,203.20x = 401,605,429,616,356,160
  5. Step 5: Solve for x
    x = 401,605,429,616,356,160/671,490,203.20
  6. Step 6: Final answer
    x = 598,080,847.20

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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.