Home / 6,605,389,315.83-9,909,014,719.77-2,121,980,591.12

Finding the Fourth Proportional to 6,605,389,315.83, 9,909,014,719.77 and 2,121,980,591.12

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Solution

The fourth proportional to 6,605,389,315.83, 9,909,014,719.77 and 2,121,980,591.12 is: 3,183,269,888.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605,389,315.83 : 9,909,014,719.77 = 2,121,980,591.12 : x
  2. Step 2: Convert to fraction form
    6,605,389,315.83/9,909,014,719.77 = 2,121,980,591.12/x
  3. Step 3: Cross multiply
    6,605,389,315.83x = 9,909,014,719.77 × 2,121,980,591.12
  4. Step 4: Simplify right side
    6,605,389,315.83x = 21,026,736,912,474,324,992
  5. Step 5: Solve for x
    x = 21,026,736,912,474,324,992/6,605,389,315.83
  6. Step 6: Final answer
    x = 3,183,269,888.74

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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.