Home / 21,061,353.70-31,592,030.55-19,644,177.70

Finding the Fourth Proportional to 21,061,353.70, 31,592,030.55 and 19,644,177.70

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Solution

The fourth proportional to 21,061,353.70, 31,592,030.55 and 19,644,177.70 is: 29,466,266.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061,353.70 : 31,592,030.55 = 19,644,177.70 : x
  2. Step 2: Convert to fraction form
    21,061,353.70/31,592,030.55 = 19,644,177.70/x
  3. Step 3: Cross multiply
    21,061,353.70x = 31,592,030.55 × 19,644,177.70
  4. Step 4: Simplify right side
    21,061,353.70x = 620,599,462,028,028.75
  5. Step 5: Solve for x
    x = 620,599,462,028,028.75/21,061,353.70
  6. Step 6: Final answer
    x = 29,466,266.55

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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.