Home / 315,524,563.20-473,286,844.80-145,655,251.20

Finding the Fourth Proportional to 315,524,563.20, 473,286,844.80 and 145,655,251.20

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Solution

The fourth proportional to 315,524,563.20, 473,286,844.80 and 145,655,251.20 is: 218,482,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,524,563.20 : 473,286,844.80 = 145,655,251.20 : x
  2. Step 2: Convert to fraction form
    315,524,563.20/473,286,844.80 = 145,655,251.20/x
  3. Step 3: Cross multiply
    315,524,563.20x = 473,286,844.80 × 145,655,251.20
  4. Step 4: Simplify right side
    315,524,563.20x = 68,936,714,268,999,408
  5. Step 5: Solve for x
    x = 68,936,714,268,999,408/315,524,563.20
  6. Step 6: Final answer
    x = 218,482,876.80

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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.