Home / 7,980,291.72-11,972,119.10-2,588,521.79

Finding the Fourth Proportional to 7,980,291.72, 11,972,119.10 and 2,588,521.79

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Solution

The fourth proportional to 7,980,291.72, 11,972,119.10 and 2,588,521.79 is: 3,883,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980,291.72 : 11,972,119.10 = 2,588,521.79 : x
  2. Step 2: Convert to fraction form
    7,980,291.72/11,972,119.10 = 2,588,521.79/x
  3. Step 3: Cross multiply
    7,980,291.72x = 11,972,119.10 × 2,588,521.79
  4. Step 4: Simplify right side
    7,980,291.72x = 30,990,091,162,825.19
  5. Step 5: Solve for x
    x = 30,990,091,162,825.19/7,980,291.72
  6. Step 6: Final answer
    x = 3,883,328.11

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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.