Home / 304,307,979.71-419,954,384.18-172,146,325.55

Finding the Fourth Proportional to 304,307,979.71, 419,954,384.18 and 172,146,325.55

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Solution

The fourth proportional to 304,307,979.71, 419,954,384.18 and 172,146,325.55 is: 237,567,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,307,979.71 : 419,954,384.18 = 172,146,325.55 : x
  2. Step 2: Convert to fraction form
    304,307,979.71/419,954,384.18 = 172,146,325.55/x
  3. Step 3: Cross multiply
    304,307,979.71x = 419,954,384.18 × 172,146,325.55
  4. Step 4: Simplify right side
    304,307,979.71x = 72,293,604,136,680,304
  5. Step 5: Solve for x
    x = 72,293,604,136,680,304/304,307,979.71
  6. Step 6: Final answer
    x = 237,567,231.08

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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.