Home / 69,640,749.76-96,102,212.52-39,870,401.80

Finding the Fourth Proportional to 69,640,749.76, 96,102,212.52 and 39,870,401.80

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Solution

The fourth proportional to 69,640,749.76, 96,102,212.52 and 39,870,401.80 is: 55,019,996.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,640,749.76 : 96,102,212.52 = 39,870,401.80 : x
  2. Step 2: Convert to fraction form
    69,640,749.76/96,102,212.52 = 39,870,401.80/x
  3. Step 3: Cross multiply
    69,640,749.76x = 96,102,212.52 × 39,870,401.80
  4. Step 4: Simplify right side
    69,640,749.76x = 3,831,633,827,041,390
  5. Step 5: Solve for x
    x = 3,831,633,827,041,390/69,640,749.76
  6. Step 6: Final answer
    x = 55,019,996.77

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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.