Home / 134,857,670.21-186,103,585.13-72,978,008.77

Finding the Fourth Proportional to 134,857,670.21, 186,103,585.13 and 72,978,008.77

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Solution

The fourth proportional to 134,857,670.21, 186,103,585.13 and 72,978,008.77 is: 100,709,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,857,670.21 : 186,103,585.13 = 72,978,008.77 : x
  2. Step 2: Convert to fraction form
    134,857,670.21/186,103,585.13 = 72,978,008.77/x
  3. Step 3: Cross multiply
    134,857,670.21x = 186,103,585.13 × 72,978,008.77
  4. Step 4: Simplify right side
    134,857,670.21x = 13,581,469,067,613,320
  5. Step 5: Solve for x
    x = 13,581,469,067,613,320/134,857,670.21
  6. Step 6: Final answer
    x = 100,709,652.23

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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.