Home / 139,288,524.56-192,158,539.08-86,986,759.76

Finding the Fourth Proportional to 139,288,524.56, 192,158,539.08 and 86,986,759.76

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Solution

The fourth proportional to 139,288,524.56, 192,158,539.08 and 86,986,759.76 is: 120,004,492.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,288,524.56 : 192,158,539.08 = 86,986,759.76 : x
  2. Step 2: Convert to fraction form
    139,288,524.56/192,158,539.08 = 86,986,759.76/x
  3. Step 3: Cross multiply
    139,288,524.56x = 192,158,539.08 × 86,986,759.76
  4. Step 4: Simplify right side
    139,288,524.56x = 16,715,248,674,784,534
  5. Step 5: Solve for x
    x = 16,715,248,674,784,534/139,288,524.56
  6. Step 6: Final answer
    x = 120,004,492.31

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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.