Home / 408,258,001.80-612,387,002.70-135,628,768.80

Finding the Fourth Proportional to 408,258,001.80, 612,387,002.70 and 135,628,768.80

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Solution

The fourth proportional to 408,258,001.80, 612,387,002.70 and 135,628,768.80 is: 203,443,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,258,001.80 : 612,387,002.70 = 135,628,768.80 : x
  2. Step 2: Convert to fraction form
    408,258,001.80/612,387,002.70 = 135,628,768.80/x
  3. Step 3: Cross multiply
    408,258,001.80x = 612,387,002.70 × 135,628,768.80
  4. Step 4: Simplify right side
    408,258,001.80x = 83,057,295,205,323,296
  5. Step 5: Solve for x
    x = 83,057,295,205,323,296/408,258,001.80
  6. Step 6: Final answer
    x = 203,443,153.20

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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.