Home / 105,192,212.40-157,788,318.60-68,912,506.80

Finding the Fourth Proportional to 105,192,212.40, 157,788,318.60 and 68,912,506.80

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Solution

The fourth proportional to 105,192,212.40, 157,788,318.60 and 68,912,506.80 is: 103,368,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,212.40 : 157,788,318.60 = 68,912,506.80 : x
  2. Step 2: Convert to fraction form
    105,192,212.40/157,788,318.60 = 68,912,506.80/x
  3. Step 3: Cross multiply
    105,192,212.40x = 157,788,318.60 × 68,912,506.80
  4. Step 4: Simplify right side
    105,192,212.40x = 10,873,588,578,483,066
  5. Step 5: Solve for x
    x = 10,873,588,578,483,066/105,192,212.40
  6. Step 6: Final answer
    x = 103,368,760.20

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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.