Home / 20,348,434.89-28,080,833.67-11,181,668.13

Finding the Fourth Proportional to 20,348,434.89, 28,080,833.67 and 11,181,668.13

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Solution

The fourth proportional to 20,348,434.89, 28,080,833.67 and 11,181,668.13 is: 15,430,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,434.89 : 28,080,833.67 = 11,181,668.13 : x
  2. Step 2: Convert to fraction form
    20,348,434.89/28,080,833.67 = 11,181,668.13/x
  3. Step 3: Cross multiply
    20,348,434.89x = 28,080,833.67 × 11,181,668.13
  4. Step 4: Simplify right side
    20,348,434.89x = 313,990,562,911,670
  5. Step 5: Solve for x
    x = 313,990,562,911,670/20,348,434.89
  6. Step 6: Final answer
    x = 15,430,698.46

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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.