Home / 21,709,290.52-29,959,194.36-11,920,147.30

Finding the Fourth Proportional to 21,709,290.52, 29,959,194.36 and 11,920,147.30

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Solution

The fourth proportional to 21,709,290.52, 29,959,194.36 and 11,920,147.30 is: 16,450,008.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709,290.52 : 29,959,194.36 = 11,920,147.30 : x
  2. Step 2: Convert to fraction form
    21,709,290.52/29,959,194.36 = 11,920,147.30/x
  3. Step 3: Cross multiply
    21,709,290.52x = 29,959,194.36 × 11,920,147.30
  4. Step 4: Simplify right side
    21,709,290.52x = 357,118,009,760,529.25
  5. Step 5: Solve for x
    x = 357,118,009,760,529.25/21,709,290.52
  6. Step 6: Final answer
    x = 16,450,008.32

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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.