Home / 21,026,116.80-31,489,408.80-14,257,886.40

Finding the Fourth Proportional to 21,026,116.80, 31,489,408.80 and 14,257,886.40

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Solution

The fourth proportional to 21,026,116.80, 31,489,408.80 and 14,257,886.40 is: 21,353,082.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,116.80 : 31,489,408.80 = 14,257,886.40 : x
  2. Step 2: Convert to fraction form
    21,026,116.80/31,489,408.80 = 14,257,886.40/x
  3. Step 3: Cross multiply
    21,026,116.80x = 31,489,408.80 × 14,257,886.40
  4. Step 4: Simplify right side
    21,026,116.80x = 448,972,413,473,560.31
  5. Step 5: Solve for x
    x = 448,972,413,473,560.31/21,026,116.80
  6. Step 6: Final answer
    x = 21,353,082.82

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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.