Home / 304,238,775.13-419,859,013.61-172,077,185.53

Finding the Fourth Proportional to 304,238,775.13, 419,859,013.61 and 172,077,185.53

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Solution

The fourth proportional to 304,238,775.13, 419,859,013.61 and 172,077,185.53 is: 237,471,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,238,775.13 : 419,859,013.61 = 172,077,185.53 : x
  2. Step 2: Convert to fraction form
    304,238,775.13/419,859,013.61 = 172,077,185.53/x
  3. Step 3: Cross multiply
    304,238,775.13x = 419,859,013.61 × 172,077,185.53
  4. Step 4: Simplify right side
    304,238,775.13x = 72,248,157,382,365,776
  5. Step 5: Solve for x
    x = 72,248,157,382,365,776/304,238,775.13
  6. Step 6: Final answer
    x = 237,471,891.45

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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.