Home / 279,454,080.74-385,649,264.72-154,010,793.42

Finding the Fourth Proportional to 279,454,080.74, 385,649,264.72 and 154,010,793.42

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Solution

The fourth proportional to 279,454,080.74, 385,649,264.72 and 154,010,793.42 is: 212,536,346.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,454,080.74 : 385,649,264.72 = 154,010,793.42 : x
  2. Step 2: Convert to fraction form
    279,454,080.74/385,649,264.72 = 154,010,793.42/x
  3. Step 3: Cross multiply
    279,454,080.74x = 385,649,264.72 × 154,010,793.42
  4. Step 4: Simplify right side
    279,454,080.74x = 59,394,149,241,366,816
  5. Step 5: Solve for x
    x = 59,394,149,241,366,816/279,454,080.74
  6. Step 6: Final answer
    x = 212,536,346.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.