Home / 431,367,191.20-647,050,786.80-362,492,437.60

Finding the Fourth Proportional to 431,367,191.20, 647,050,786.80 and 362,492,437.60

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Solution

The fourth proportional to 431,367,191.20, 647,050,786.80 and 362,492,437.60 is: 543,738,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,367,191.20 : 647,050,786.80 = 362,492,437.60 : x
  2. Step 2: Convert to fraction form
    431,367,191.20/647,050,786.80 = 362,492,437.60/x
  3. Step 3: Cross multiply
    431,367,191.20x = 647,050,786.80 × 362,492,437.60
  4. Step 4: Simplify right side
    431,367,191.20x = 234,551,016,958,129,888
  5. Step 5: Solve for x
    x = 234,551,016,958,129,888/431,367,191.20
  6. Step 6: Final answer
    x = 543,738,656.40

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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.