Home / 418,396,870.35-577,370,342.79-227,658,675.38

Finding the Fourth Proportional to 418,396,870.35, 577,370,342.79 and 227,658,675.38

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Solution

The fourth proportional to 418,396,870.35, 577,370,342.79 and 227,658,675.38 is: 314,159,537.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,396,870.35 : 577,370,342.79 = 227,658,675.38 : x
  2. Step 2: Convert to fraction form
    418,396,870.35/577,370,342.79 = 227,658,675.38/x
  3. Step 3: Cross multiply
    418,396,870.35x = 577,370,342.79 × 227,658,675.38
  4. Step 4: Simplify right side
    418,396,870.35x = 131,443,367,440,381,072
  5. Step 5: Solve for x
    x = 131,443,367,440,381,072/418,396,870.35
  6. Step 6: Final answer
    x = 314,159,537.88

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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.