Home / 290,313,728.80-434,873,396.40-146,787,431.20

Finding the Fourth Proportional to 290,313,728.80, 434,873,396.40 and 146,787,431.20

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Solution

The fourth proportional to 290,313,728.80, 434,873,396.40 and 146,787,431.20 is: 219,879,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,313,728.80 : 434,873,396.40 = 146,787,431.20 : x
  2. Step 2: Convert to fraction form
    290,313,728.80/434,873,396.40 = 146,787,431.20/x
  3. Step 3: Cross multiply
    290,313,728.80x = 434,873,396.40 × 146,787,431.20
  4. Step 4: Simplify right side
    290,313,728.80x = 63,833,948,754,775,320
  5. Step 5: Solve for x
    x = 63,833,948,754,775,320/290,313,728.80
  6. Step 6: Final answer
    x = 219,879,194.20

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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.