Home / 315,219,639.20-472,829,458.80-194,287,287.20

Finding the Fourth Proportional to 315,219,639.20, 472,829,458.80 and 194,287,287.20

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Solution

The fourth proportional to 315,219,639.20, 472,829,458.80 and 194,287,287.20 is: 291,430,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,219,639.20 : 472,829,458.80 = 194,287,287.20 : x
  2. Step 2: Convert to fraction form
    315,219,639.20/472,829,458.80 = 194,287,287.20/x
  3. Step 3: Cross multiply
    315,219,639.20x = 472,829,458.80 × 194,287,287.20
  4. Step 4: Simplify right side
    315,219,639.20x = 91,864,752,858,496,160
  5. Step 5: Solve for x
    x = 91,864,752,858,496,160/315,219,639.20
  6. Step 6: Final answer
    x = 291,430,930.80

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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.