Home / 154,341,734.48-212,983,771.44-91,620,513.44

Finding the Fourth Proportional to 154,341,734.48, 212,983,771.44 and 91,620,513.44

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Solution

The fourth proportional to 154,341,734.48, 212,983,771.44 and 91,620,513.44 is: 126,431,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,341,734.48 : 212,983,771.44 = 91,620,513.44 : x
  2. Step 2: Convert to fraction form
    154,341,734.48/212,983,771.44 = 91,620,513.44/x
  3. Step 3: Cross multiply
    154,341,734.48x = 212,983,771.44 × 91,620,513.44
  4. Step 4: Simplify right side
    154,341,734.48x = 19,513,682,493,720,408
  5. Step 5: Solve for x
    x = 19,513,682,493,720,408/154,341,734.48
  6. Step 6: Final answer
    x = 126,431,665.16

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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.