Home / 2,659,733,765.20-3,989,600,647.80-721,036,997.20

Finding the Fourth Proportional to 2,659,733,765.20, 3,989,600,647.80 and 721,036,997.20

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Solution

The fourth proportional to 2,659,733,765.20, 3,989,600,647.80 and 721,036,997.20 is: 1,081,555,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,733,765.20 : 3,989,600,647.80 = 721,036,997.20 : x
  2. Step 2: Convert to fraction form
    2,659,733,765.20/3,989,600,647.80 = 721,036,997.20/x
  3. Step 3: Cross multiply
    2,659,733,765.20x = 3,989,600,647.80 × 721,036,997.20
  4. Step 4: Simplify right side
    2,659,733,765.20x = 2,876,649,671,116,887,040
  5. Step 5: Solve for x
    x = 2,876,649,671,116,887,040/2,659,733,765.20
  6. Step 6: Final answer
    x = 1,081,555,495.80

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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.