Home / 890,379,013.20-1,335,568,519.80-657,926,719.80

Finding the Fourth Proportional to 890,379,013.20, 1,335,568,519.80 and 657,926,719.80

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Solution

The fourth proportional to 890,379,013.20, 1,335,568,519.80 and 657,926,719.80 is: 986,890,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,379,013.20 : 1,335,568,519.80 = 657,926,719.80 : x
  2. Step 2: Convert to fraction form
    890,379,013.20/1,335,568,519.80 = 657,926,719.80/x
  3. Step 3: Cross multiply
    890,379,013.20x = 1,335,568,519.80 × 657,926,719.80
  4. Step 4: Simplify right side
    890,379,013.20x = 878,706,215,300,155,264
  5. Step 5: Solve for x
    x = 878,706,215,300,155,264/890,379,013.20
  6. Step 6: Final answer
    x = 986,890,079.70

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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.