Home / 21,116,290.70-31,686,418.17-11,400,774.19

Finding the Fourth Proportional to 21,116,290.70, 31,686,418.17 and 11,400,774.19

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Solution

The fourth proportional to 21,116,290.70, 31,686,418.17 and 11,400,774.19 is: 17,107,630.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116,290.70 : 31,686,418.17 = 11,400,774.19 : x
  2. Step 2: Convert to fraction form
    21,116,290.70/31,686,418.17 = 11,400,774.19/x
  3. Step 3: Cross multiply
    21,116,290.70x = 31,686,418.17 × 11,400,774.19
  4. Step 4: Simplify right side
    21,116,290.70x = 361,249,698,366,867
  5. Step 5: Solve for x
    x = 361,249,698,366,867/21,116,290.70
  6. Step 6: Final answer
    x = 17,107,630.48

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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.