Home / 847,631,741.20-1,271,447,611.80-618,049,229.20

Finding the Fourth Proportional to 847,631,741.20, 1,271,447,611.80 and 618,049,229.20

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Solution

The fourth proportional to 847,631,741.20, 1,271,447,611.80 and 618,049,229.20 is: 927,073,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,631,741.20 : 1,271,447,611.80 = 618,049,229.20 : x
  2. Step 2: Convert to fraction form
    847,631,741.20/1,271,447,611.80 = 618,049,229.20/x
  3. Step 3: Cross multiply
    847,631,741.20x = 1,271,447,611.80 × 618,049,229.20
  4. Step 4: Simplify right side
    847,631,741.20x = 785,817,216,441,170,816
  5. Step 5: Solve for x
    x = 785,817,216,441,170,816/847,631,741.20
  6. Step 6: Final answer
    x = 927,073,843.80

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Similar ratio
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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.