Home / 398,581,966.80-597,872,950.20-111,367,630.80

Finding the Fourth Proportional to 398,581,966.80, 597,872,950.20 and 111,367,630.80

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Solution

The fourth proportional to 398,581,966.80, 597,872,950.20 and 111,367,630.80 is: 167,051,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,581,966.80 : 597,872,950.20 = 111,367,630.80 : x
  2. Step 2: Convert to fraction form
    398,581,966.80/597,872,950.20 = 111,367,630.80/x
  3. Step 3: Cross multiply
    398,581,966.80x = 597,872,950.20 × 111,367,630.80
  4. Step 4: Simplify right side
    398,581,966.80x = 66,583,693,983,180,392
  5. Step 5: Solve for x
    x = 66,583,693,983,180,392/398,581,966.80
  6. Step 6: Final answer
    x = 167,051,446.20

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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.