Home / 10,921,696.20-16,394,985.90-6,436,499.40

Finding the Fourth Proportional to 10,921,696.20, 16,394,985.90 and 6,436,499.40

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Solution

The fourth proportional to 10,921,696.20, 16,394,985.90 and 6,436,499.40 is: 9,662,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,696.20 : 16,394,985.90 = 6,436,499.40 : x
  2. Step 2: Convert to fraction form
    10,921,696.20/16,394,985.90 = 6,436,499.40/x
  3. Step 3: Cross multiply
    10,921,696.20x = 16,394,985.90 × 6,436,499.40
  4. Step 4: Simplify right side
    10,921,696.20x = 105,526,316,908,358.47
  5. Step 5: Solve for x
    x = 105,526,316,908,358.47/10,921,696.20
  6. Step 6: Final answer
    x = 9,662,081.33

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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.