Home / 12,883,229.12-17,778,913.80-7,082,384.60

Finding the Fourth Proportional to 12,883,229.12, 17,778,913.80 and 7,082,384.60

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Solution

The fourth proportional to 12,883,229.12, 17,778,913.80 and 7,082,384.60 is: 9,773,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883,229.12 : 17,778,913.80 = 7,082,384.60 : x
  2. Step 2: Convert to fraction form
    12,883,229.12/17,778,913.80 = 7,082,384.60/x
  3. Step 3: Cross multiply
    12,883,229.12x = 17,778,913.80 × 7,082,384.60
  4. Step 4: Simplify right side
    12,883,229.12x = 125,917,105,301,847.48
  5. Step 5: Solve for x
    x = 125,917,105,301,847.48/12,883,229.12
  6. Step 6: Final answer
    x = 9,773,722.42

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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.