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Finding the Fourth Proportional to 404,312,536.80, 606,866,936.40 and 200,071,231.20

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Solution

The fourth proportional to 404,312,536.80, 606,866,936.40 and 200,071,231.20 is: 300,303,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,312,536.80 : 606,866,936.40 = 200,071,231.20 : x
  2. Step 2: Convert to fraction form
    404,312,536.80/606,866,936.40 = 200,071,231.20/x
  3. Step 3: Cross multiply
    404,312,536.80x = 606,866,936.40 × 200,071,231.20
  4. Step 4: Simplify right side
    404,312,536.80x = 121,416,615,140,120,080
  5. Step 5: Solve for x
    x = 121,416,615,140,120,080/404,312,536.80
  6. Step 6: Final answer
    x = 300,303,859.24

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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.