Home / 72,856,430.11-100,554,312.05-43,489,277.47

Finding the Fourth Proportional to 72,856,430.11, 100,554,312.05 and 43,489,277.47

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Solution

The fourth proportional to 72,856,430.11, 100,554,312.05 and 43,489,277.47 is: 60,022,627.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,856,430.11 : 100,554,312.05 = 43,489,277.47 : x
  2. Step 2: Convert to fraction form
    72,856,430.11/100,554,312.05 = 43,489,277.47/x
  3. Step 3: Cross multiply
    72,856,430.11x = 100,554,312.05 × 43,489,277.47
  4. Step 4: Simplify right side
    72,856,430.11x = 4,373,034,377,618,544.50
  5. Step 5: Solve for x
    x = 4,373,034,377,618,544.50/72,856,430.11
  6. Step 6: Final answer
    x = 60,022,627.67

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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.