Home / 10,936,809.60-16,405,214.40-8,385,892.80

Finding the Fourth Proportional to 10,936,809.60, 16,405,214.40 and 8,385,892.80

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Solution

The fourth proportional to 10,936,809.60, 16,405,214.40 and 8,385,892.80 is: 12,578,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936,809.60 : 16,405,214.40 = 8,385,892.80 : x
  2. Step 2: Convert to fraction form
    10,936,809.60/16,405,214.40 = 8,385,892.80/x
  3. Step 3: Cross multiply
    10,936,809.60x = 16,405,214.40 × 8,385,892.80
  4. Step 4: Simplify right side
    10,936,809.60x = 137,572,369,319,416.31
  5. Step 5: Solve for x
    x = 137,572,369,319,416.31/10,936,809.60
  6. Step 6: Final answer
    x = 12,578,839.20

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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.