Home / 77,781,549,524.28-107,279,107,334.25-66,948,763,153.53

Finding the Fourth Proportional to 77,781,549,524.28, 107,279,107,334.25 and 66,948,763,153.53

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Solution

The fourth proportional to 77,781,549,524.28, 107,279,107,334.25 and 66,948,763,153.53 is: 92,338,139,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,781,549,524.28 : 107,279,107,334.25 = 66,948,763,153.53 : x
  2. Step 2: Convert to fraction form
    77,781,549,524.28/107,279,107,334.25 = 66,948,763,153.53/x
  3. Step 3: Cross multiply
    77,781,549,524.28x = 107,279,107,334.25 × 66,948,763,153.53
  4. Step 4: Simplify right side
    77,781,549,524.28x = 7,182,203,548,243,147,620,352
  5. Step 5: Solve for x
    x = 7,182,203,548,243,147,620,352/77,781,549,524.28
  6. Step 6: Final answer
    x = 92,338,139,213.87

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1.5x scale

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.