Home / 10,987,802.20-16,481,703.30-8,118,020.80

Finding the Fourth Proportional to 10,987,802.20, 16,481,703.30 and 8,118,020.80

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Solution

The fourth proportional to 10,987,802.20, 16,481,703.30 and 8,118,020.80 is: 12,177,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987,802.20 : 16,481,703.30 = 8,118,020.80 : x
  2. Step 2: Convert to fraction form
    10,987,802.20/16,481,703.30 = 8,118,020.80/x
  3. Step 3: Cross multiply
    10,987,802.20x = 16,481,703.30 × 8,118,020.80
  4. Step 4: Simplify right side
    10,987,802.20x = 133,798,810,208,828.64
  5. Step 5: Solve for x
    x = 133,798,810,208,828.64/10,987,802.20
  6. Step 6: Final answer
    x = 12,177,031.20

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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.