Home / 11,712,786,821.30-16,157,669,109.81-7,479,247,508.66

Finding the Fourth Proportional to 11,712,786,821.30, 16,157,669,109.81 and 7,479,247,508.66

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Solution

The fourth proportional to 11,712,786,821.30, 16,157,669,109.81 and 7,479,247,508.66 is: 10,317,545,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712,786,821.30 : 16,157,669,109.81 = 7,479,247,508.66 : x
  2. Step 2: Convert to fraction form
    11,712,786,821.30/16,157,669,109.81 = 7,479,247,508.66/x
  3. Step 3: Cross multiply
    11,712,786,821.30x = 16,157,669,109.81 × 7,479,247,508.66
  4. Step 4: Simplify right side
    11,712,786,821.30x = 120,847,206,435,299,082,240
  5. Step 5: Solve for x
    x = 120,847,206,435,299,082,240/11,712,786,821.30
  6. Step 6: Final answer
    x = 10,317,545,113.65

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Double scale
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1.5x scale

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.