Home / 135,971,239.80-203,956,604.52-42,605,358.60

Finding the Fourth Proportional to 135,971,239.80, 203,956,604.52 and 42,605,358.60

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Solution

The fourth proportional to 135,971,239.80, 203,956,604.52 and 42,605,358.60 is: 63,907,957.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,971,239.80 : 203,956,604.52 = 42,605,358.60 : x
  2. Step 2: Convert to fraction form
    135,971,239.80/203,956,604.52 = 42,605,358.60/x
  3. Step 3: Cross multiply
    135,971,239.80x = 203,956,604.52 × 42,605,358.60
  4. Step 4: Simplify right side
    135,971,239.80x = 8,689,644,274,412,982
  5. Step 5: Solve for x
    x = 8,689,644,274,412,982/135,971,239.80
  6. Step 6: Final answer
    x = 63,907,957.94

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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.