Home / 117,985,193.80-162,820,263.30-68,455,059.36

Finding the Fourth Proportional to 117,985,193.80, 162,820,263.30 and 68,455,059.36

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Solution

The fourth proportional to 117,985,193.80, 162,820,263.30 and 68,455,059.36 is: 94,468,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,985,193.80 : 162,820,263.30 = 68,455,059.36 : x
  2. Step 2: Convert to fraction form
    117,985,193.80/162,820,263.30 = 68,455,059.36/x
  3. Step 3: Cross multiply
    117,985,193.80x = 162,820,263.30 × 68,455,059.36
  4. Step 4: Simplify right side
    117,985,193.80x = 11,145,870,789,212,330
  5. Step 5: Solve for x
    x = 11,145,870,789,212,330/117,985,193.80
  6. Step 6: Final answer
    x = 94,468,385.65

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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.