Home / 315,218,247.20-472,827,370.80-194,285,895.20

Finding the Fourth Proportional to 315,218,247.20, 472,827,370.80 and 194,285,895.20

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Solution

The fourth proportional to 315,218,247.20, 472,827,370.80 and 194,285,895.20 is: 291,428,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,218,247.20 : 472,827,370.80 = 194,285,895.20 : x
  2. Step 2: Convert to fraction form
    315,218,247.20/472,827,370.80 = 194,285,895.20/x
  3. Step 3: Cross multiply
    315,218,247.20x = 472,827,370.80 × 194,285,895.20
  4. Step 4: Simplify right side
    315,218,247.20x = 91,863,689,010,940,336
  5. Step 5: Solve for x
    x = 91,863,689,010,940,336/315,218,247.20
  6. Step 6: Final answer
    x = 291,428,842.80

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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.