Home / 57,091,147.29-78,785,861.22-30,985,665.48

Finding the Fourth Proportional to 57,091,147.29, 78,785,861.22 and 30,985,665.48

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Solution

The fourth proportional to 57,091,147.29, 78,785,861.22 and 30,985,665.48 is: 42,760,260.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,147.29 : 78,785,861.22 = 30,985,665.48 : x
  2. Step 2: Convert to fraction form
    57,091,147.29/78,785,861.22 = 30,985,665.48/x
  3. Step 3: Cross multiply
    57,091,147.29x = 78,785,861.22 × 30,985,665.48
  4. Step 4: Simplify right side
    57,091,147.29x = 2,441,232,340,316,624.50
  5. Step 5: Solve for x
    x = 2,441,232,340,316,624.50/57,091,147.29
  6. Step 6: Final answer
    x = 42,760,260.67

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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.