Home / 76,161,438.63-114,240,829.24-18,654,208.02

Finding the Fourth Proportional to 76,161,438.63, 114,240,829.24 and 18,654,208.02

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Solution

The fourth proportional to 76,161,438.63, 114,240,829.24 and 18,654,208.02 is: 27,980,986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,161,438.63 : 114,240,829.24 = 18,654,208.02 : x
  2. Step 2: Convert to fraction form
    76,161,438.63/114,240,829.24 = 18,654,208.02/x
  3. Step 3: Cross multiply
    76,161,438.63x = 114,240,829.24 × 18,654,208.02
  4. Step 4: Simplify right side
    76,161,438.63x = 2,131,072,193,020,258.25
  5. Step 5: Solve for x
    x = 2,131,072,193,020,258.25/76,161,438.63
  6. Step 6: Final answer
    x = 27,980,986.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.