Home / 386,268,147.20-579,402,220.80-204,869,619.20

Finding the Fourth Proportional to 386,268,147.20, 579,402,220.80 and 204,869,619.20

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Solution

The fourth proportional to 386,268,147.20, 579,402,220.80 and 204,869,619.20 is: 307,304,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,268,147.20 : 579,402,220.80 = 204,869,619.20 : x
  2. Step 2: Convert to fraction form
    386,268,147.20/579,402,220.80 = 204,869,619.20/x
  3. Step 3: Cross multiply
    386,268,147.20x = 579,402,220.80 × 204,869,619.20
  4. Step 4: Simplify right side
    386,268,147.20x = 118,701,912,338,930,304
  5. Step 5: Solve for x
    x = 118,701,912,338,930,304/386,268,147.20
  6. Step 6: Final answer
    x = 307,304,428.80

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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.