Home / 9,989,474.79-13,785,475.07-5,405,796.17

Finding the Fourth Proportional to 9,989,474.79, 13,785,475.07 and 5,405,796.17

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Solution

The fourth proportional to 9,989,474.79, 13,785,475.07 and 5,405,796.17 is: 7,459,998.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,474.79 : 13,785,475.07 = 5,405,796.17 : x
  2. Step 2: Convert to fraction form
    9,989,474.79/13,785,475.07 = 5,405,796.17/x
  3. Step 3: Cross multiply
    9,989,474.79x = 13,785,475.07 × 5,405,796.17
  4. Step 4: Simplify right side
    9,989,474.79x = 74,521,468,279,623.59
  5. Step 5: Solve for x
    x = 74,521,468,279,623.59/9,989,474.79
  6. Step 6: Final answer
    x = 7,459,998.63

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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.