Home / 21,041,428.20-31,508,998.20-16,789,900.20

Finding the Fourth Proportional to 21,041,428.20, 31,508,998.20 and 16,789,900.20

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Solution

The fourth proportional to 21,041,428.20, 31,508,998.20 and 16,789,900.20 is: 25,142,444.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041,428.20 : 31,508,998.20 = 16,789,900.20 : x
  2. Step 2: Convert to fraction form
    21,041,428.20/31,508,998.20 = 16,789,900.20/x
  3. Step 3: Cross multiply
    21,041,428.20x = 31,508,998.20 × 16,789,900.20
  4. Step 4: Simplify right side
    21,041,428.20x = 529,032,935,179,979.62
  5. Step 5: Solve for x
    x = 529,032,935,179,979.62/21,041,428.20
  6. Step 6: Final answer
    x = 25,142,444.24

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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.