Home / 7,711,305.30-10,628,318.61-5,128,370.82

Finding the Fourth Proportional to 7,711,305.30, 10,628,318.61 and 5,128,370.82

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Solution

The fourth proportional to 7,711,305.30, 10,628,318.61 and 5,128,370.82 is: 7,068,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711,305.30 : 10,628,318.61 = 5,128,370.82 : x
  2. Step 2: Convert to fraction form
    7,711,305.30/10,628,318.61 = 5,128,370.82/x
  3. Step 3: Cross multiply
    7,711,305.30x = 10,628,318.61 × 5,128,370.82
  4. Step 4: Simplify right side
    7,711,305.30x = 54,505,959,025,186.96
  5. Step 5: Solve for x
    x = 54,505,959,025,186.96/7,711,305.30
  6. Step 6: Final answer
    x = 7,068,318.13

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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.