Home / 21,019,083.20-31,542,621.60-9,653,681.60

Finding the Fourth Proportional to 21,019,083.20, 31,542,621.60 and 9,653,681.60

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Solution

The fourth proportional to 21,019,083.20, 31,542,621.60 and 9,653,681.60 is: 14,486,950.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,083.20 : 31,542,621.60 = 9,653,681.60 : x
  2. Step 2: Convert to fraction form
    21,019,083.20/31,542,621.60 = 9,653,681.60/x
  3. Step 3: Cross multiply
    21,019,083.20x = 31,542,621.60 × 9,653,681.60
  4. Step 4: Simplify right side
    21,019,083.20x = 304,502,425,755,682.56
  5. Step 5: Solve for x
    x = 304,502,425,755,682.56/21,019,083.20
  6. Step 6: Final answer
    x = 14,486,950.87

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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.