Home / 21,135,228.50-31,657,291.76-14,274,072.92

Finding the Fourth Proportional to 21,135,228.50, 31,657,291.76 and 14,274,072.92

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Solution

The fourth proportional to 21,135,228.50, 31,657,291.76 and 14,274,072.92 is: 21,380,345.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,135,228.50 : 31,657,291.76 = 14,274,072.92 : x
  2. Step 2: Convert to fraction form
    21,135,228.50/31,657,291.76 = 14,274,072.92/x
  3. Step 3: Cross multiply
    21,135,228.50x = 31,657,291.76 × 14,274,072.92
  4. Step 4: Simplify right side
    21,135,228.50x = 451,878,490,802,298.25
  5. Step 5: Solve for x
    x = 451,878,490,802,298.25/21,135,228.50
  6. Step 6: Final answer
    x = 21,380,345.66

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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.