Home / 72,608,178.64-100,199,307.27-39,568,436.86

Finding the Fourth Proportional to 72,608,178.64, 100,199,307.27 and 39,568,436.86

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Solution

The fourth proportional to 72,608,178.64, 100,199,307.27 and 39,568,436.86 is: 54,604,454.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,608,178.64 : 100,199,307.27 = 39,568,436.86 : x
  2. Step 2: Convert to fraction form
    72,608,178.64/100,199,307.27 = 39,568,436.86/x
  3. Step 3: Cross multiply
    72,608,178.64x = 100,199,307.27 × 39,568,436.86
  4. Step 4: Simplify right side
    72,608,178.64x = 3,964,729,963,128,733.50
  5. Step 5: Solve for x
    x = 3,964,729,963,128,733.50/72,608,178.64
  6. Step 6: Final answer
    x = 54,604,454.17

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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.