Home / 845,568,142.40-1,268,352,213.60-784,346,139.20

Finding the Fourth Proportional to 845,568,142.40, 1,268,352,213.60 and 784,346,139.20

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Solution

The fourth proportional to 845,568,142.40, 1,268,352,213.60 and 784,346,139.20 is: 1,176,519,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,568,142.40 : 1,268,352,213.60 = 784,346,139.20 : x
  2. Step 2: Convert to fraction form
    845,568,142.40/1,268,352,213.60 = 784,346,139.20/x
  3. Step 3: Cross multiply
    845,568,142.40x = 1,268,352,213.60 × 784,346,139.20
  4. Step 4: Simplify right side
    845,568,142.40x = 994,827,161,882,933,760
  5. Step 5: Solve for x
    x = 994,827,161,882,933,760/845,568,142.40
  6. Step 6: Final answer
    x = 1,176,519,208.80

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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.