Home / 21,283,723.90-31,930,069.20-6,905,666.62

Finding the Fourth Proportional to 21,283,723.90, 31,930,069.20 and 6,905,666.62

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Solution

The fourth proportional to 21,283,723.90, 31,930,069.20 and 6,905,666.62 is: 10,359,954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283,723.90 : 31,930,069.20 = 6,905,666.62 : x
  2. Step 2: Convert to fraction form
    21,283,723.90/31,930,069.20 = 6,905,666.62/x
  3. Step 3: Cross multiply
    21,283,723.90x = 31,930,069.20 × 6,905,666.62
  4. Step 4: Simplify right side
    21,283,723.90x = 220,498,413,048,730.09
  5. Step 5: Solve for x
    x = 220,498,413,048,730.09/21,283,723.90
  6. Step 6: Final answer
    x = 10,359,954.59

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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.