Home / 21,042,229.92-31,564,926-6,666,427.68

Finding the Fourth Proportional to 21,042,229.92, 31,564,926 and 6,666,427.68

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Solution

The fourth proportional to 21,042,229.92, 31,564,926 and 6,666,427.68 is: 10,000,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042,229.92 : 31,564,926 = 6,666,427.68 : x
  2. Step 2: Convert to fraction form
    21,042,229.92/31,564,926 = 6,666,427.68/x
  3. Step 3: Cross multiply
    21,042,229.92x = 31,564,926 × 6,666,427.68
  4. Step 4: Simplify right side
    21,042,229.92x = 210,425,296,403,551.66
  5. Step 5: Solve for x
    x = 210,425,296,403,551.66/21,042,229.92
  6. Step 6: Final answer
    x = 10,000,142.44

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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.