Home / 521,640,964.80-782,461,447.20-368,585,956.80

Finding the Fourth Proportional to 521,640,964.80, 782,461,447.20 and 368,585,956.80

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Solution

The fourth proportional to 521,640,964.80, 782,461,447.20 and 368,585,956.80 is: 552,878,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,640,964.80 : 782,461,447.20 = 368,585,956.80 : x
  2. Step 2: Convert to fraction form
    521,640,964.80/782,461,447.20 = 368,585,956.80/x
  3. Step 3: Cross multiply
    521,640,964.80x = 782,461,447.20 × 368,585,956.80
  4. Step 4: Simplify right side
    521,640,964.80x = 288,404,301,175,324,736
  5. Step 5: Solve for x
    x = 288,404,301,175,324,736/521,640,964.80
  6. Step 6: Final answer
    x = 552,878,935.20

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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.