Home / 76,944,662.82-115,417,223.85-18,652,109.67

Finding the Fourth Proportional to 76,944,662.82, 115,417,223.85 and 18,652,109.67

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Solution

The fourth proportional to 76,944,662.82, 115,417,223.85 and 18,652,109.67 is: 27,978,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,944,662.82 : 115,417,223.85 = 18,652,109.67 : x
  2. Step 2: Convert to fraction form
    76,944,662.82/115,417,223.85 = 18,652,109.67/x
  3. Step 3: Cross multiply
    76,944,662.82x = 115,417,223.85 × 18,652,109.67
  4. Step 4: Simplify right side
    76,944,662.82x = 2,152,774,717,057,139.75
  5. Step 5: Solve for x
    x = 2,152,774,717,057,139.75/76,944,662.82
  6. Step 6: Final answer
    x = 27,978,220.17

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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.