Home / 81,551,164.70-122,326,747.05-45,271,459.10

Finding the Fourth Proportional to 81,551,164.70, 122,326,747.05 and 45,271,459.10

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Solution

The fourth proportional to 81,551,164.70, 122,326,747.05 and 45,271,459.10 is: 67,907,188.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551,164.70 : 122,326,747.05 = 45,271,459.10 : x
  2. Step 2: Convert to fraction form
    81,551,164.70/122,326,747.05 = 45,271,459.10/x
  3. Step 3: Cross multiply
    81,551,164.70x = 122,326,747.05 × 45,271,459.10
  4. Step 4: Simplify right side
    81,551,164.70x = 5,537,910,325,910,121
  5. Step 5: Solve for x
    x = 5,537,910,325,910,121/81,551,164.70
  6. Step 6: Final answer
    x = 67,907,188.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.