Home / 304,918,438.22-420,785,966.14-172,759,175.18

Finding the Fourth Proportional to 304,918,438.22, 420,785,966.14 and 172,759,175.18

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Solution

The fourth proportional to 304,918,438.22, 420,785,966.14 and 172,759,175.18 is: 238,406,824.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,918,438.22 : 420,785,966.14 = 172,759,175.18 : x
  2. Step 2: Convert to fraction form
    304,918,438.22/420,785,966.14 = 172,759,175.18/x
  3. Step 3: Cross multiply
    304,918,438.22x = 420,785,966.14 × 172,759,175.18
  4. Step 4: Simplify right side
    304,918,438.22x = 72,694,636,436,802,016
  5. Step 5: Solve for x
    x = 72,694,636,436,802,016/304,918,438.22
  6. Step 6: Final answer
    x = 238,406,824.01

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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.