Home / 287,578,132.80-431,367,199.20-241,661,630.40

Finding the Fourth Proportional to 287,578,132.80, 431,367,199.20 and 241,661,630.40

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Solution

The fourth proportional to 287,578,132.80, 431,367,199.20 and 241,661,630.40 is: 362,492,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,578,132.80 : 431,367,199.20 = 241,661,630.40 : x
  2. Step 2: Convert to fraction form
    287,578,132.80/431,367,199.20 = 241,661,630.40/x
  3. Step 3: Cross multiply
    287,578,132.80x = 431,367,199.20 × 241,661,630.40
  4. Step 4: Simplify right side
    287,578,132.80x = 104,244,900,659,753,568
  5. Step 5: Solve for x
    x = 104,244,900,659,753,568/287,578,132.80
  6. Step 6: Final answer
    x = 362,492,445.60

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1.5x scale

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.