Home / 105,192,199.40-157,788,299.10-68,912,493.80

Finding the Fourth Proportional to 105,192,199.40, 157,788,299.10 and 68,912,493.80

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Solution

The fourth proportional to 105,192,199.40, 157,788,299.10 and 68,912,493.80 is: 103,368,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,199.40 : 157,788,299.10 = 68,912,493.80 : x
  2. Step 2: Convert to fraction form
    105,192,199.40/157,788,299.10 = 68,912,493.80/x
  3. Step 3: Cross multiply
    105,192,199.40x = 157,788,299.10 × 68,912,493.80
  4. Step 4: Simplify right side
    105,192,199.40x = 10,873,585,183,441,294
  5. Step 5: Solve for x
    x = 10,873,585,183,441,294/105,192,199.40
  6. Step 6: Final answer
    x = 103,368,740.70

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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.