Home / 290,313,918.30-434,873,680.65-146,787,620.70

Finding the Fourth Proportional to 290,313,918.30, 434,873,680.65 and 146,787,620.70

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Solution

The fourth proportional to 290,313,918.30, 434,873,680.65 and 146,787,620.70 is: 219,879,478.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,313,918.30 : 434,873,680.65 = 146,787,620.70 : x
  2. Step 2: Convert to fraction form
    290,313,918.30/434,873,680.65 = 146,787,620.70/x
  3. Step 3: Cross multiply
    290,313,918.30x = 434,873,680.65 × 146,787,620.70
  4. Step 4: Simplify right side
    290,313,918.30x = 63,834,072,887,665,120
  5. Step 5: Solve for x
    x = 63,834,072,887,665,120/290,313,918.30
  6. Step 6: Final answer
    x = 219,879,478.26

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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.