Home / 378,436,329.80-567,654,494.70-105,806,659.40

Finding the Fourth Proportional to 378,436,329.80, 567,654,494.70 and 105,806,659.40

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Solution

The fourth proportional to 378,436,329.80, 567,654,494.70 and 105,806,659.40 is: 158,709,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,436,329.80 : 567,654,494.70 = 105,806,659.40 : x
  2. Step 2: Convert to fraction form
    378,436,329.80/567,654,494.70 = 105,806,659.40/x
  3. Step 3: Cross multiply
    378,436,329.80x = 567,654,494.70 × 105,806,659.40
  4. Step 4: Simplify right side
    378,436,329.80x = 60,061,625,777,602,016
  5. Step 5: Solve for x
    x = 60,061,625,777,602,016/378,436,329.80
  6. Step 6: Final answer
    x = 158,709,989.10

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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.