Home / 57,837,868.72-79,817,073.20-31,731,912.16

Finding the Fourth Proportional to 57,837,868.72, 79,817,073.20 and 31,731,912.16

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Solution

The fourth proportional to 57,837,868.72, 79,817,073.20 and 31,731,912.16 is: 43,790,485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,837,868.72 : 79,817,073.20 = 31,731,912.16 : x
  2. Step 2: Convert to fraction form
    57,837,868.72/79,817,073.20 = 31,731,912.16/x
  3. Step 3: Cross multiply
    57,837,868.72x = 79,817,073.20 × 31,731,912.16
  4. Step 4: Simplify right side
    57,837,868.72x = 2,532,748,355,650,690
  5. Step 5: Solve for x
    x = 2,532,748,355,650,690/57,837,868.72
  6. Step 6: Final answer
    x = 43,790,485.57

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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.