Home / 290,304,028.80-435,456,043.20-208,674,691.20

Finding the Fourth Proportional to 290,304,028.80, 435,456,043.20 and 208,674,691.20

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Solution

The fourth proportional to 290,304,028.80, 435,456,043.20 and 208,674,691.20 is: 313,012,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,304,028.80 : 435,456,043.20 = 208,674,691.20 : x
  2. Step 2: Convert to fraction form
    290,304,028.80/435,456,043.20 = 208,674,691.20/x
  3. Step 3: Cross multiply
    290,304,028.80x = 435,456,043.20 × 208,674,691.20
  4. Step 4: Simplify right side
    290,304,028.80x = 90,868,655,345,933,856
  5. Step 5: Solve for x
    x = 90,868,655,345,933,856/290,304,028.80
  6. Step 6: Final answer
    x = 313,012,036.80

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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.