Home / 105,192,005.20-157,788,007.80-68,912,299.60

Finding the Fourth Proportional to 105,192,005.20, 157,788,007.80 and 68,912,299.60

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Solution

The fourth proportional to 105,192,005.20, 157,788,007.80 and 68,912,299.60 is: 103,368,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,005.20 : 157,788,007.80 = 68,912,299.60 : x
  2. Step 2: Convert to fraction form
    105,192,005.20/157,788,007.80 = 68,912,299.60/x
  3. Step 3: Cross multiply
    105,192,005.20x = 157,788,007.80 × 68,912,299.60
  4. Step 4: Simplify right side
    105,192,005.20x = 10,873,534,466,800,736
  5. Step 5: Solve for x
    x = 10,873,534,466,800,736/105,192,005.20
  6. Step 6: Final answer
    x = 103,368,449.40

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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.