Home / 105,192,010.20-157,788,015.30-68,912,304.60

Finding the Fourth Proportional to 105,192,010.20, 157,788,015.30 and 68,912,304.60

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Solution

The fourth proportional to 105,192,010.20, 157,788,015.30 and 68,912,304.60 is: 103,368,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,010.20 : 157,788,015.30 = 68,912,304.60 : x
  2. Step 2: Convert to fraction form
    105,192,010.20/157,788,015.30 = 68,912,304.60/x
  3. Step 3: Cross multiply
    105,192,010.20x = 157,788,015.30 × 68,912,304.60
  4. Step 4: Simplify right side
    105,192,010.20x = 10,873,535,772,583,060
  5. Step 5: Solve for x
    x = 10,873,535,772,583,060/105,192,010.20
  6. Step 6: Final answer
    x = 103,368,456.90

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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.