Home / 279,527,892.71-385,765,750.33-154,079,805.69

Finding the Fourth Proportional to 279,527,892.71, 385,765,750.33 and 154,079,805.69

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Solution

The fourth proportional to 279,527,892.71, 385,765,750.33 and 154,079,805.69 is: 212,639,644.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,527,892.71 : 385,765,750.33 = 154,079,805.69 : x
  2. Step 2: Convert to fraction form
    279,527,892.71/385,765,750.33 = 154,079,805.69/x
  3. Step 3: Cross multiply
    279,527,892.71x = 385,765,750.33 × 154,079,805.69
  4. Step 4: Simplify right side
    279,527,892.71x = 59,438,711,852,318,248
  5. Step 5: Solve for x
    x = 59,438,711,852,318,248/279,527,892.71
  6. Step 6: Final answer
    x = 212,639,644.93

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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.