Home / 21,061,352.70-31,592,029.05-19,644,176.70

Finding the Fourth Proportional to 21,061,352.70, 31,592,029.05 and 19,644,176.70

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Solution

The fourth proportional to 21,061,352.70, 31,592,029.05 and 19,644,176.70 is: 29,466,265.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061,352.70 : 31,592,029.05 = 19,644,176.70 : x
  2. Step 2: Convert to fraction form
    21,061,352.70/31,592,029.05 = 19,644,176.70/x
  3. Step 3: Cross multiply
    21,061,352.70x = 31,592,029.05 × 19,644,176.70
  4. Step 4: Simplify right side
    21,061,352.70x = 620,599,400,969,733.12
  5. Step 5: Solve for x
    x = 620,599,400,969,733.12/21,061,352.70
  6. Step 6: Final answer
    x = 29,466,265.05

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Similar ratio
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1.5x scale

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.