Home / 9,989,444.04-13,785,432.82-5,405,765.46

Finding the Fourth Proportional to 9,989,444.04, 13,785,432.82 and 5,405,765.46

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Solution

The fourth proportional to 9,989,444.04, 13,785,432.82 and 5,405,765.46 is: 7,459,956.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,444.04 : 13,785,432.82 = 5,405,765.46 : x
  2. Step 2: Convert to fraction form
    9,989,444.04/13,785,432.82 = 5,405,765.46/x
  3. Step 3: Cross multiply
    9,989,444.04x = 13,785,432.82 × 5,405,765.46
  4. Step 4: Simplify right side
    9,989,444.04x = 74,520,816,589,506.39
  5. Step 5: Solve for x
    x = 74,520,816,589,506.39/9,989,444.04
  6. Step 6: Final answer
    x = 7,459,956.36

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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.