Home / 1,321,176,999.16-1,821,531,762.10-1,082,141,591.10

Finding the Fourth Proportional to 1,321,176,999.16, 1,821,531,762.10 and 1,082,141,591.10

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Solution

The fourth proportional to 1,321,176,999.16, 1,821,531,762.10 and 1,082,141,591.10 is: 1,491,969,115.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,176,999.16 : 1,821,531,762.10 = 1,082,141,591.10 : x
  2. Step 2: Convert to fraction form
    1,321,176,999.16/1,821,531,762.10 = 1,082,141,591.10/x
  3. Step 3: Cross multiply
    1,321,176,999.16x = 1,821,531,762.10 × 1,082,141,591.10
  4. Step 4: Simplify right side
    1,321,176,999.16x = 1,971,155,279,272,669,952
  5. Step 5: Solve for x
    x = 1,971,155,279,272,669,952/1,321,176,999.16
  6. Step 6: Final answer
    x = 1,491,969,115.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.