Home / 7,978,055.80-11,010,129.24-4,879,607.20

Finding the Fourth Proportional to 7,978,055.80, 11,010,129.24 and 4,879,607.20

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Solution

The fourth proportional to 7,978,055.80, 11,010,129.24 and 4,879,607.20 is: 6,734,110.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,055.80 : 11,010,129.24 = 4,879,607.20 : x
  2. Step 2: Convert to fraction form
    7,978,055.80/11,010,129.24 = 4,879,607.20/x
  3. Step 3: Cross multiply
    7,978,055.80x = 11,010,129.24 × 4,879,607.20
  4. Step 4: Simplify right side
    7,978,055.80x = 53,725,105,912,434.53
  5. Step 5: Solve for x
    x = 53,725,105,912,434.53/7,978,055.80
  6. Step 6: Final answer
    x = 6,734,110.07

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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.