Home / 45,546,133.96-68,264,311.12-20,920,078.36

Finding the Fourth Proportional to 45,546,133.96, 68,264,311.12 and 20,920,078.36

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Solution

The fourth proportional to 45,546,133.96, 68,264,311.12 and 20,920,078.36 is: 31,354,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,546,133.96 : 68,264,311.12 = 20,920,078.36 : x
  2. Step 2: Convert to fraction form
    45,546,133.96/68,264,311.12 = 20,920,078.36/x
  3. Step 3: Cross multiply
    45,546,133.96x = 68,264,311.12 × 20,920,078.36
  4. Step 4: Simplify right side
    45,546,133.96x = 1,428,094,737,821,819.50
  5. Step 5: Solve for x
    x = 1,428,094,737,821,819.50/45,546,133.96
  6. Step 6: Final answer
    x = 31,354,905.76

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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.