Home / 8,503,080,990.10-12,754,621,485.15-6,643,462,642.90

Finding the Fourth Proportional to 8,503,080,990.10, 12,754,621,485.15 and 6,643,462,642.90

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Solution

The fourth proportional to 8,503,080,990.10, 12,754,621,485.15 and 6,643,462,642.90 is: 9,965,193,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503,080,990.10 : 12,754,621,485.15 = 6,643,462,642.90 : x
  2. Step 2: Convert to fraction form
    8,503,080,990.10/12,754,621,485.15 = 6,643,462,642.90/x
  3. Step 3: Cross multiply
    8,503,080,990.10x = 12,754,621,485.15 × 6,643,462,642.90
  4. Step 4: Simplify right side
    8,503,080,990.10x = 84,734,851,360,923,729,920
  5. Step 5: Solve for x
    x = 84,734,851,360,923,729,920/8,503,080,990.10
  6. Step 6: Final answer
    x = 9,965,193,964.35

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Double scale
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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.