Home / 12,428,899,318.13-18,655,135,609.45-7,692,895,290.31

Finding the Fourth Proportional to 12,428,899,318.13, 18,655,135,609.45 and 7,692,895,290.31

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Solution

The fourth proportional to 12,428,899,318.13, 18,655,135,609.45 and 7,692,895,290.31 is: 11,546,638,298.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428,899,318.13 : 18,655,135,609.45 = 7,692,895,290.31 : x
  2. Step 2: Convert to fraction form
    12,428,899,318.13/18,655,135,609.45 = 7,692,895,290.31/x
  3. Step 3: Cross multiply
    12,428,899,318.13x = 18,655,135,609.45 × 7,692,895,290.31
  4. Step 4: Simplify right side
    12,428,899,318.13x = 143,512,004,870,082,428,928
  5. Step 5: Solve for x
    x = 143,512,004,870,082,428,928/12,428,899,318.13
  6. Step 6: Final answer
    x = 11,546,638,298.12

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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.