Home / 418,182,056.39-627,344,547.71-172,404,336.62

Finding the Fourth Proportional to 418,182,056.39, 627,344,547.71 and 172,404,336.62

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Solution

The fourth proportional to 418,182,056.39, 627,344,547.71 and 172,404,336.62 is: 258,635,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,182,056.39 : 627,344,547.71 = 172,404,336.62 : x
  2. Step 2: Convert to fraction form
    418,182,056.39/627,344,547.71 = 172,404,336.62/x
  3. Step 3: Cross multiply
    418,182,056.39x = 627,344,547.71 × 172,404,336.62
  4. Step 4: Simplify right side
    418,182,056.39x = 108,156,920,576,117,760
  5. Step 5: Solve for x
    x = 108,156,920,576,117,760/418,182,056.39
  6. Step 6: Final answer
    x = 258,635,967.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.