Home / 278,561,017.56-384,009,057.42-194,668,689.24

Finding the Fourth Proportional to 278,561,017.56, 384,009,057.42 and 194,668,689.24

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Solution

The fourth proportional to 278,561,017.56, 384,009,057.42 and 194,668,689.24 is: 268,359,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,561,017.56 : 384,009,057.42 = 194,668,689.24 : x
  2. Step 2: Convert to fraction form
    278,561,017.56/384,009,057.42 = 194,668,689.24/x
  3. Step 3: Cross multiply
    278,561,017.56x = 384,009,057.42 × 194,668,689.24
  4. Step 4: Simplify right side
    278,561,017.56x = 74,754,539,864,239,296
  5. Step 5: Solve for x
    x = 74,754,539,864,239,296/278,561,017.56
  6. Step 6: Final answer
    x = 268,359,659.65

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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.