Home / 91,437,072.11-126,183,489.87-49,621,128.34

Finding the Fourth Proportional to 91,437,072.11, 126,183,489.87 and 49,621,128.34

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Solution

The fourth proportional to 91,437,072.11, 126,183,489.87 and 49,621,128.34 is: 68,477,336.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,437,072.11 : 126,183,489.87 = 49,621,128.34 : x
  2. Step 2: Convert to fraction form
    91,437,072.11/126,183,489.87 = 49,621,128.34/x
  3. Step 3: Cross multiply
    91,437,072.11x = 126,183,489.87 × 49,621,128.34
  4. Step 4: Simplify right side
    91,437,072.11x = 6,261,367,144,559,692
  5. Step 5: Solve for x
    x = 6,261,367,144,559,692/91,437,072.11
  6. Step 6: Final answer
    x = 68,477,336.38

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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.