Home / 100,719,184,062.72-138,994,408,650.60-54,995,272,391.76

Finding the Fourth Proportional to 100,719,184,062.72, 138,994,408,650.60 and 54,995,272,391.76

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Solution

The fourth proportional to 100,719,184,062.72, 138,994,408,650.60 and 54,995,272,391.76 is: 75,894,532,266.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,719,184,062.72 : 138,994,408,650.60 = 54,995,272,391.76 : x
  2. Step 2: Convert to fraction form
    100,719,184,062.72/138,994,408,650.60 = 54,995,272,391.76/x
  3. Step 3: Cross multiply
    100,719,184,062.72x = 138,994,408,650.60 × 54,995,272,391.76
  4. Step 4: Simplify right side
    100,719,184,062.72x = 7,644,035,364,671,350,374,400
  5. Step 5: Solve for x
    x = 7,644,035,364,671,350,374,400/100,719,184,062.72
  6. Step 6: Final answer
    x = 75,894,532,266.18

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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.