Home / 21,731,809.08-29,983,356.48-13,026,805.52

Finding the Fourth Proportional to 21,731,809.08, 29,983,356.48 and 13,026,805.52

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Solution

The fourth proportional to 21,731,809.08, 29,983,356.48 and 13,026,805.52 is: 17,973,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731,809.08 : 29,983,356.48 = 13,026,805.52 : x
  2. Step 2: Convert to fraction form
    21,731,809.08/29,983,356.48 = 13,026,805.52/x
  3. Step 3: Cross multiply
    21,731,809.08x = 29,983,356.48 × 13,026,805.52
  4. Step 4: Simplify right side
    21,731,809.08x = 390,587,353,701,791.75
  5. Step 5: Solve for x
    x = 390,587,353,701,791.75/21,731,809.08
  6. Step 6: Final answer
    x = 17,973,071.28

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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.