Home / 79,149,081.08-109,225,742.50-43,869,161.48

Finding the Fourth Proportional to 79,149,081.08, 109,225,742.50 and 43,869,161.48

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Solution

The fourth proportional to 79,149,081.08, 109,225,742.50 and 43,869,161.48 is: 60,539,448.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,149,081.08 : 109,225,742.50 = 43,869,161.48 : x
  2. Step 2: Convert to fraction form
    79,149,081.08/109,225,742.50 = 43,869,161.48/x
  3. Step 3: Cross multiply
    79,149,081.08x = 109,225,742.50 × 43,869,161.48
  4. Step 4: Simplify right side
    79,149,081.08x = 4,791,641,735,505,399
  5. Step 5: Solve for x
    x = 4,791,641,735,505,399/79,149,081.08
  6. Step 6: Final answer
    x = 60,539,448.72

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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.