Home / 15,036,909.36-20,750,379.88-8,161,243.80

Finding the Fourth Proportional to 15,036,909.36, 20,750,379.88 and 8,161,243.80

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Solution

The fourth proportional to 15,036,909.36, 20,750,379.88 and 8,161,243.80 is: 11,262,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036,909.36 : 20,750,379.88 = 8,161,243.80 : x
  2. Step 2: Convert to fraction form
    15,036,909.36/20,750,379.88 = 8,161,243.80/x
  3. Step 3: Cross multiply
    15,036,909.36x = 20,750,379.88 × 8,161,243.80
  4. Step 4: Simplify right side
    15,036,909.36x = 169,348,909,143,294.72
  5. Step 5: Solve for x
    x = 169,348,909,143,294.72/15,036,909.36
  6. Step 6: Final answer
    x = 11,262,215.20

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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.