Home / 890,379,014.20-1,335,568,521.30-657,926,720.80

Finding the Fourth Proportional to 890,379,014.20, 1,335,568,521.30 and 657,926,720.80

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Solution

The fourth proportional to 890,379,014.20, 1,335,568,521.30 and 657,926,720.80 is: 986,890,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,379,014.20 : 1,335,568,521.30 = 657,926,720.80 : x
  2. Step 2: Convert to fraction form
    890,379,014.20/1,335,568,521.30 = 657,926,720.80/x
  3. Step 3: Cross multiply
    890,379,014.20x = 1,335,568,521.30 × 657,926,720.80
  4. Step 4: Simplify right side
    890,379,014.20x = 878,706,217,622,613,888
  5. Step 5: Solve for x
    x = 878,706,217,622,613,888/890,379,014.20
  6. Step 6: Final answer
    x = 986,890,081.20

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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.