Home / 78,576,286.32-108,436,398.60-45,091,222.20

Finding the Fourth Proportional to 78,576,286.32, 108,436,398.60 and 45,091,222.20

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Solution

The fourth proportional to 78,576,286.32, 108,436,398.60 and 45,091,222.20 is: 62,226,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,576,286.32 : 108,436,398.60 = 45,091,222.20 : x
  2. Step 2: Convert to fraction form
    78,576,286.32/108,436,398.60 = 45,091,222.20/x
  3. Step 3: Cross multiply
    78,576,286.32x = 108,436,398.60 × 45,091,222.20
  4. Step 4: Simplify right side
    78,576,286.32x = 4,889,529,743,840,369
  5. Step 5: Solve for x
    x = 4,889,529,743,840,369/78,576,286.32
  6. Step 6: Final answer
    x = 62,226,531.35

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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.