Home / 287,488,229.70-431,232,344.55-218,613,476.10

Finding the Fourth Proportional to 287,488,229.70, 431,232,344.55 and 218,613,476.10

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Solution

The fourth proportional to 287,488,229.70, 431,232,344.55 and 218,613,476.10 is: 327,920,214.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,488,229.70 : 431,232,344.55 = 218,613,476.10 : x
  2. Step 2: Convert to fraction form
    287,488,229.70/431,232,344.55 = 218,613,476.10/x
  3. Step 3: Cross multiply
    287,488,229.70x = 431,232,344.55 × 218,613,476.10
  4. Step 4: Simplify right side
    287,488,229.70x = 94,273,201,848,828,384
  5. Step 5: Solve for x
    x = 94,273,201,848,828,384/287,488,229.70
  6. Step 6: Final answer
    x = 327,920,214.15

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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.