Home / 315,577,687.20-473,366,530.80-206,738,570.40

Finding the Fourth Proportional to 315,577,687.20, 473,366,530.80 and 206,738,570.40

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Solution

The fourth proportional to 315,577,687.20, 473,366,530.80 and 206,738,570.40 is: 310,107,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,577,687.20 : 473,366,530.80 = 206,738,570.40 : x
  2. Step 2: Convert to fraction form
    315,577,687.20/473,366,530.80 = 206,738,570.40/x
  3. Step 3: Cross multiply
    315,577,687.20x = 473,366,530.80 × 206,738,570.40
  4. Step 4: Simplify right side
    315,577,687.20x = 97,863,119,852,799,568
  5. Step 5: Solve for x
    x = 97,863,119,852,799,568/315,577,687.20
  6. Step 6: Final answer
    x = 310,107,855.60

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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.