Home / 290,313,634.80-434,873,255.40-146,787,337.20

Finding the Fourth Proportional to 290,313,634.80, 434,873,255.40 and 146,787,337.20

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Solution

The fourth proportional to 290,313,634.80, 434,873,255.40 and 146,787,337.20 is: 219,879,053.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,313,634.80 : 434,873,255.40 = 146,787,337.20 : x
  2. Step 2: Convert to fraction form
    290,313,634.80/434,873,255.40 = 146,787,337.20/x
  3. Step 3: Cross multiply
    290,313,634.80x = 434,873,255.40 × 146,787,337.20
  4. Step 4: Simplify right side
    290,313,634.80x = 63,833,887,179,661,512
  5. Step 5: Solve for x
    x = 63,833,887,179,661,512/290,313,634.80
  6. Step 6: Final answer
    x = 219,879,053.30

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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.