Home / 287,488,227.70-431,232,341.55-218,613,474.10

Finding the Fourth Proportional to 287,488,227.70, 431,232,341.55 and 218,613,474.10

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Solution

The fourth proportional to 287,488,227.70, 431,232,341.55 and 218,613,474.10 is: 327,920,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,488,227.70 : 431,232,341.55 = 218,613,474.10 : x
  2. Step 2: Convert to fraction form
    287,488,227.70/431,232,341.55 = 218,613,474.10/x
  3. Step 3: Cross multiply
    287,488,227.70x = 431,232,341.55 × 218,613,474.10
  4. Step 4: Simplify right side
    287,488,227.70x = 94,273,200,330,523,280
  5. Step 5: Solve for x
    x = 94,273,200,330,523,280/287,488,227.70
  6. Step 6: Final answer
    x = 327,920,211.15

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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.