Home / 15,867,646.62-21,897,814.23-8,991,900.06

Finding the Fourth Proportional to 15,867,646.62, 21,897,814.23 and 8,991,900.06

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Solution

The fourth proportional to 15,867,646.62, 21,897,814.23 and 8,991,900.06 is: 12,409,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867,646.62 : 21,897,814.23 = 8,991,900.06 : x
  2. Step 2: Convert to fraction form
    15,867,646.62/21,897,814.23 = 8,991,900.06/x
  3. Step 3: Cross multiply
    15,867,646.62x = 21,897,814.23 × 8,991,900.06
  4. Step 4: Simplify right side
    15,867,646.62x = 196,902,957,088,605.88
  5. Step 5: Solve for x
    x = 196,902,957,088,605.88/15,867,646.62
  6. Step 6: Final answer
    x = 12,409,083.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.