Home / 315,589,095.20-473,383,642.80-145,719,783.20

Finding the Fourth Proportional to 315,589,095.20, 473,383,642.80 and 145,719,783.20

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Solution

The fourth proportional to 315,589,095.20, 473,383,642.80 and 145,719,783.20 is: 218,579,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,589,095.20 : 473,383,642.80 = 145,719,783.20 : x
  2. Step 2: Convert to fraction form
    315,589,095.20/473,383,642.80 = 145,719,783.20/x
  3. Step 3: Cross multiply
    315,589,095.20x = 473,383,642.80 × 145,719,783.20
  4. Step 4: Simplify right side
    315,589,095.20x = 68,981,361,799,242,240
  5. Step 5: Solve for x
    x = 68,981,361,799,242,240/315,589,095.20
  6. Step 6: Final answer
    x = 218,579,674.80

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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.