Home / 381,996,043.20-572,994,064.80-163,609,221.60

Finding the Fourth Proportional to 381,996,043.20, 572,994,064.80 and 163,609,221.60

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Solution

The fourth proportional to 381,996,043.20, 572,994,064.80 and 163,609,221.60 is: 245,413,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,996,043.20 : 572,994,064.80 = 163,609,221.60 : x
  2. Step 2: Convert to fraction form
    381,996,043.20/572,994,064.80 = 163,609,221.60/x
  3. Step 3: Cross multiply
    381,996,043.20x = 572,994,064.80 × 163,609,221.60
  4. Step 4: Simplify right side
    381,996,043.20x = 93,747,112,923,347,952
  5. Step 5: Solve for x
    x = 93,747,112,923,347,952/381,996,043.20
  6. Step 6: Final answer
    x = 245,413,832.40

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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.