Home / 100,367,268.11-138,509,218.24-56,317,524.92

Finding the Fourth Proportional to 100,367,268.11, 138,509,218.24 and 56,317,524.92

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Solution

The fourth proportional to 100,367,268.11, 138,509,218.24 and 56,317,524.92 is: 77,719,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,367,268.11 : 138,509,218.24 = 56,317,524.92 : x
  2. Step 2: Convert to fraction form
    100,367,268.11/138,509,218.24 = 56,317,524.92/x
  3. Step 3: Cross multiply
    100,367,268.11x = 138,509,218.24 × 56,317,524.92
  4. Step 4: Simplify right side
    100,367,268.11x = 7,800,496,349,047,579
  5. Step 5: Solve for x
    x = 7,800,496,349,047,579/100,367,268.11
  6. Step 6: Final answer
    x = 77,719,524.47

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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.