Home / 76,419,217.43-115,139,266.32-69,142,005.30

Finding the Fourth Proportional to 76,419,217.43, 115,139,266.32 and 69,142,005.30

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Solution

The fourth proportional to 76,419,217.43, 115,139,266.32 and 69,142,005.30 is: 104,174,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,419,217.43 : 115,139,266.32 = 69,142,005.30 : x
  2. Step 2: Convert to fraction form
    76,419,217.43/115,139,266.32 = 69,142,005.30/x
  3. Step 3: Cross multiply
    76,419,217.43x = 115,139,266.32 × 69,142,005.30
  4. Step 4: Simplify right side
    76,419,217.43x = 7,960,959,762,826,837
  5. Step 5: Solve for x
    x = 7,960,959,762,826,837/76,419,217.43
  6. Step 6: Final answer
    x = 104,174,840.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.