Home / 7,159,036.32-9,879,471.74-3,939,772.32

Finding the Fourth Proportional to 7,159,036.32, 9,879,471.74 and 3,939,772.32

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Solution

The fourth proportional to 7,159,036.32, 9,879,471.74 and 3,939,772.32 is: 5,436,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159,036.32 : 9,879,471.74 = 3,939,772.32 : x
  2. Step 2: Convert to fraction form
    7,159,036.32/9,879,471.74 = 3,939,772.32/x
  3. Step 3: Cross multiply
    7,159,036.32x = 9,879,471.74 × 3,939,772.32
  4. Step 4: Simplify right side
    7,159,036.32x = 38,922,869,297,474.23
  5. Step 5: Solve for x
    x = 38,922,869,297,474.23/7,159,036.32
  6. Step 6: Final answer
    x = 5,436,886.69

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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.