Home / 71,216,178-98,282,469.36-39,853,961.76

Finding the Fourth Proportional to 71,216,178, 98,282,469.36 and 39,853,961.76

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Solution

The fourth proportional to 71,216,178, 98,282,469.36 and 39,853,961.76 is: 55,000,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,216,178 : 98,282,469.36 = 39,853,961.76 : x
  2. Step 2: Convert to fraction form
    71,216,178/98,282,469.36 = 39,853,961.76/x
  3. Step 3: Cross multiply
    71,216,178x = 98,282,469.36 × 39,853,961.76
  4. Step 4: Simplify right side
    71,216,178x = 3,916,945,775,551,811.50
  5. Step 5: Solve for x
    x = 3,916,945,775,551,811.50/71,216,178
  6. Step 6: Final answer
    x = 55,000,786.14

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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.