Home / 72,933,119.76-100,646,520.96-39,893,079.84

Finding the Fourth Proportional to 72,933,119.76, 100,646,520.96 and 39,893,079.84

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Solution

The fourth proportional to 72,933,119.76, 100,646,520.96 and 39,893,079.84 is: 55,051,802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,933,119.76 : 100,646,520.96 = 39,893,079.84 : x
  2. Step 2: Convert to fraction form
    72,933,119.76/100,646,520.96 = 39,893,079.84/x
  3. Step 3: Cross multiply
    72,933,119.76x = 100,646,520.96 × 39,893,079.84
  4. Step 4: Simplify right side
    72,933,119.76x = 4,015,099,696,275,513.50
  5. Step 5: Solve for x
    x = 4,015,099,696,275,513.50/72,933,119.76
  6. Step 6: Final answer
    x = 55,051,802.38

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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.