Home / 318,890,799.84-440,069,300.16-172,213,083.84

Finding the Fourth Proportional to 318,890,799.84, 440,069,300.16 and 172,213,083.84

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Solution

The fourth proportional to 318,890,799.84, 440,069,300.16 and 172,213,083.84 is: 237,654,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,890,799.84 : 440,069,300.16 = 172,213,083.84 : x
  2. Step 2: Convert to fraction form
    318,890,799.84/440,069,300.16 = 172,213,083.84/x
  3. Step 3: Cross multiply
    318,890,799.84x = 440,069,300.16 × 172,213,083.84
  4. Step 4: Simplify right side
    318,890,799.84x = 75,785,691,283,864,208
  5. Step 5: Solve for x
    x = 75,785,691,283,864,208/318,890,799.84
  6. Step 6: Final answer
    x = 237,654,053.74

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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.