Home / 38,520,482.87-53,158,071.46-20,879,314.37

Finding the Fourth Proportional to 38,520,482.87, 53,158,071.46 and 20,879,314.37

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Solution

The fourth proportional to 38,520,482.87, 53,158,071.46 and 20,879,314.37 is: 28,813,348.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520,482.87 : 53,158,071.46 = 20,879,314.37 : x
  2. Step 2: Convert to fraction form
    38,520,482.87/53,158,071.46 = 20,879,314.37/x
  3. Step 3: Cross multiply
    38,520,482.87x = 53,158,071.46 × 20,879,314.37
  4. Step 4: Simplify right side
    38,520,482.87x = 1,109,904,085,396,961.75
  5. Step 5: Solve for x
    x = 1,109,904,085,396,961.75/38,520,482.87
  6. Step 6: Final answer
    x = 28,813,348.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.