Home / 54,128,809.80-81,193,214.70-21,803,910.98

Finding the Fourth Proportional to 54,128,809.80, 81,193,214.70 and 21,803,910.98

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Solution

The fourth proportional to 54,128,809.80, 81,193,214.70 and 21,803,910.98 is: 32,705,866.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,809.80 : 81,193,214.70 = 21,803,910.98 : x
  2. Step 2: Convert to fraction form
    54,128,809.80/81,193,214.70 = 21,803,910.98/x
  3. Step 3: Cross multiply
    54,128,809.80x = 81,193,214.70 × 21,803,910.98
  4. Step 4: Simplify right side
    54,128,809.80x = 1,770,329,625,092,861.50
  5. Step 5: Solve for x
    x = 1,770,329,625,092,861.50/54,128,809.80
  6. Step 6: Final answer
    x = 32,705,866.46

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Double scale
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Similar ratio
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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.