Home / 199,988,022.80-299,982,034.20-139,472,080.40

Finding the Fourth Proportional to 199,988,022.80, 299,982,034.20 and 139,472,080.40

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Solution

The fourth proportional to 199,988,022.80, 299,982,034.20 and 139,472,080.40 is: 209,208,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,988,022.80 : 299,982,034.20 = 139,472,080.40 : x
  2. Step 2: Convert to fraction form
    199,988,022.80/299,982,034.20 = 139,472,080.40/x
  3. Step 3: Cross multiply
    199,988,022.80x = 299,982,034.20 × 139,472,080.40
  4. Step 4: Simplify right side
    199,988,022.80x = 41,839,118,392,497,952
  5. Step 5: Solve for x
    x = 41,839,118,392,497,952/199,988,022.80
  6. Step 6: Final answer
    x = 209,208,120.60

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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.