Home / 20,756,881.26-28,646,267.22-11,591,295.48

Finding the Fourth Proportional to 20,756,881.26, 28,646,267.22 and 11,591,295.48

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Solution

The fourth proportional to 20,756,881.26, 28,646,267.22 and 11,591,295.48 is: 15,996,976.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,756,881.26 : 28,646,267.22 = 11,591,295.48 : x
  2. Step 2: Convert to fraction form
    20,756,881.26/28,646,267.22 = 11,591,295.48/x
  3. Step 3: Cross multiply
    20,756,881.26x = 28,646,267.22 × 11,591,295.48
  4. Step 4: Simplify right side
    20,756,881.26x = 332,047,347,746,058.19
  5. Step 5: Solve for x
    x = 332,047,347,746,058.19/20,756,881.26
  6. Step 6: Final answer
    x = 15,996,976.79

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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.