Home / 6,672,639,120.12-9,207,633,360.42-3,959,439,378.89

Finding the Fourth Proportional to 6,672,639,120.12, 9,207,633,360.42 and 3,959,439,378.89

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Solution

The fourth proportional to 6,672,639,120.12, 9,207,633,360.42 and 3,959,439,378.89 is: 5,463,665,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,672,639,120.12 : 9,207,633,360.42 = 3,959,439,378.89 : x
  2. Step 2: Convert to fraction form
    6,672,639,120.12/9,207,633,360.42 = 3,959,439,378.89/x
  3. Step 3: Cross multiply
    6,672,639,120.12x = 9,207,633,360.42 × 3,959,439,378.89
  4. Step 4: Simplify right side
    6,672,639,120.12x = 36,457,066,113,582,174,208
  5. Step 5: Solve for x
    x = 36,457,066,113,582,174,208/6,672,639,120.12
  6. Step 6: Final answer
    x = 5,463,665,194.13

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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.