Home / 7,869,013.20-11,808,768.60-3,606,987.60

Finding the Fourth Proportional to 7,869,013.20, 11,808,768.60 and 3,606,987.60

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Solution

The fourth proportional to 7,869,013.20, 11,808,768.60 and 3,606,987.60 is: 5,412,887.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869,013.20 : 11,808,768.60 = 3,606,987.60 : x
  2. Step 2: Convert to fraction form
    7,869,013.20/11,808,768.60 = 3,606,987.60/x
  3. Step 3: Cross multiply
    7,869,013.20x = 11,808,768.60 × 3,606,987.60
  4. Step 4: Simplify right side
    7,869,013.20x = 42,594,081,911,469.36
  5. Step 5: Solve for x
    x = 42,594,081,911,469.36/7,869,013.20
  6. Step 6: Final answer
    x = 5,412,887.34

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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.