Home / 9,989,445.19-13,785,434.37-5,405,766.56

Finding the Fourth Proportional to 9,989,445.19, 13,785,434.37 and 5,405,766.56

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Solution

The fourth proportional to 9,989,445.19, 13,785,434.37 and 5,405,766.56 is: 7,459,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,445.19 : 13,785,434.37 = 5,405,766.56 : x
  2. Step 2: Convert to fraction form
    9,989,445.19/13,785,434.37 = 5,405,766.56/x
  3. Step 3: Cross multiply
    9,989,445.19x = 13,785,434.37 × 5,405,766.56
  4. Step 4: Simplify right side
    9,989,445.19x = 74,520,840,166,884.25
  5. Step 5: Solve for x
    x = 74,520,840,166,884.25/9,989,445.19
  6. Step 6: Final answer
    x = 7,459,957.86

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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.