Home / 84,783,341.70-127,175,012.55-20,957,933.70

Finding the Fourth Proportional to 84,783,341.70, 127,175,012.55 and 20,957,933.70

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Solution

The fourth proportional to 84,783,341.70, 127,175,012.55 and 20,957,933.70 is: 31,436,900.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,783,341.70 : 127,175,012.55 = 20,957,933.70 : x
  2. Step 2: Convert to fraction form
    84,783,341.70/127,175,012.55 = 20,957,933.70/x
  3. Step 3: Cross multiply
    84,783,341.70x = 127,175,012.55 × 20,957,933.70
  4. Step 4: Simplify right side
    84,783,341.70x = 2,665,325,481,319,568
  5. Step 5: Solve for x
    x = 2,665,325,481,319,568/84,783,341.70
  6. Step 6: Final answer
    x = 31,436,900.55

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Double scale
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Similar ratio
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1.5x scale

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.