Home / 9,989,471.67-13,785,470.76-5,405,793.04

Finding the Fourth Proportional to 9,989,471.67, 13,785,470.76 and 5,405,793.04

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Solution

The fourth proportional to 9,989,471.67, 13,785,470.76 and 5,405,793.04 is: 7,459,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,471.67 : 13,785,470.76 = 5,405,793.04 : x
  2. Step 2: Convert to fraction form
    9,989,471.67/13,785,470.76 = 5,405,793.04/x
  3. Step 3: Cross multiply
    9,989,471.67x = 13,785,470.76 × 5,405,793.04
  4. Step 4: Simplify right side
    9,989,471.67x = 74,521,401,887,531.52
  5. Step 5: Solve for x
    x = 74,521,401,887,531.52/9,989,471.67
  6. Step 6: Final answer
    x = 7,459,994.32

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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.