Home / 9,989,456.67-13,785,450.24-5,405,778.05

Finding the Fourth Proportional to 9,989,456.67, 13,785,450.24 and 5,405,778.05

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Solution

The fourth proportional to 9,989,456.67, 13,785,450.24 and 5,405,778.05 is: 7,459,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,456.67 : 13,785,450.24 = 5,405,778.05 : x
  2. Step 2: Convert to fraction form
    9,989,456.67/13,785,450.24 = 5,405,778.05/x
  3. Step 3: Cross multiply
    9,989,456.67x = 13,785,450.24 × 5,405,778.05
  4. Step 4: Simplify right side
    9,989,456.67x = 74,521,084,247,831.98
  5. Step 5: Solve for x
    x = 74,521,084,247,831.98/9,989,456.67
  6. Step 6: Final answer
    x = 7,459,973.72

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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.