Home / 431,374,143.60-647,061,215.40-201,366,478.80

Finding the Fourth Proportional to 431,374,143.60, 647,061,215.40 and 201,366,478.80

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Solution

The fourth proportional to 431,374,143.60, 647,061,215.40 and 201,366,478.80 is: 302,049,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,374,143.60 : 647,061,215.40 = 201,366,478.80 : x
  2. Step 2: Convert to fraction form
    431,374,143.60/647,061,215.40 = 201,366,478.80/x
  3. Step 3: Cross multiply
    431,374,143.60x = 647,061,215.40 × 201,366,478.80
  4. Step 4: Simplify right side
    431,374,143.60x = 130,296,438,513,146,336
  5. Step 5: Solve for x
    x = 130,296,438,513,146,336/431,374,143.60
  6. Step 6: Final answer
    x = 302,049,718.20

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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.