Home / 100,101,193.40-150,151,790.10-78,602,108.60

Finding the Fourth Proportional to 100,101,193.40, 150,151,790.10 and 78,602,108.60

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Solution

The fourth proportional to 100,101,193.40, 150,151,790.10 and 78,602,108.60 is: 117,903,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,101,193.40 : 150,151,790.10 = 78,602,108.60 : x
  2. Step 2: Convert to fraction form
    100,101,193.40/150,151,790.10 = 78,602,108.60/x
  3. Step 3: Cross multiply
    100,101,193.40x = 150,151,790.10 × 78,602,108.60
  4. Step 4: Simplify right side
    100,101,193.40x = 11,802,247,311,924,604
  5. Step 5: Solve for x
    x = 11,802,247,311,924,604/100,101,193.40
  6. Step 6: Final answer
    x = 117,903,162.90

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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.