Home / 11,712,786,820.80-16,157,669,109.12-7,479,247,508.16

Finding the Fourth Proportional to 11,712,786,820.80, 16,157,669,109.12 and 7,479,247,508.16

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Solution

The fourth proportional to 11,712,786,820.80, 16,157,669,109.12 and 7,479,247,508.16 is: 10,317,545,112.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712,786,820.80 : 16,157,669,109.12 = 7,479,247,508.16 : x
  2. Step 2: Convert to fraction form
    11,712,786,820.80/16,157,669,109.12 = 7,479,247,508.16/x
  3. Step 3: Cross multiply
    11,712,786,820.80x = 16,157,669,109.12 × 7,479,247,508.16
  4. Step 4: Simplify right side
    11,712,786,820.80x = 120,847,206,422,059,565,056
  5. Step 5: Solve for x
    x = 120,847,206,422,059,565,056/11,712,786,820.80
  6. Step 6: Final answer
    x = 10,317,545,112.96

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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.