Home / 79,129,500.16-109,144,189.60-55,657,817.92

Finding the Fourth Proportional to 79,129,500.16, 109,144,189.60 and 55,657,817.92

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Solution

The fourth proportional to 79,129,500.16, 109,144,189.60 and 55,657,817.92 is: 76,769,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,129,500.16 : 109,144,189.60 = 55,657,817.92 : x
  2. Step 2: Convert to fraction form
    79,129,500.16/109,144,189.60 = 55,657,817.92/x
  3. Step 3: Cross multiply
    79,129,500.16x = 109,144,189.60 × 55,657,817.92
  4. Step 4: Simplify right side
    79,129,500.16x = 6,074,727,431,782,757
  5. Step 5: Solve for x
    x = 6,074,727,431,782,757/79,129,500.16
  6. Step 6: Final answer
    x = 76,769,440.22

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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.