Home / 253,722,408.64-380,551,148.16-81,184,788.16

Finding the Fourth Proportional to 253,722,408.64, 380,551,148.16 and 81,184,788.16

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Solution

The fourth proportional to 253,722,408.64, 380,551,148.16 and 81,184,788.16 is: 121,766,794.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,722,408.64 : 380,551,148.16 = 81,184,788.16 : x
  2. Step 2: Convert to fraction form
    253,722,408.64/380,551,148.16 = 81,184,788.16/x
  3. Step 3: Cross multiply
    253,722,408.64x = 380,551,148.16 × 81,184,788.16
  4. Step 4: Simplify right side
    253,722,408.64x = 30,894,964,347,414,376
  5. Step 5: Solve for x
    x = 30,894,964,347,414,376/253,722,408.64
  6. Step 6: Final answer
    x = 121,766,794.32

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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.