Home / 8,538,666.20-12,807,999.30-8,160,752.60

Finding the Fourth Proportional to 8,538,666.20, 12,807,999.30 and 8,160,752.60

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Solution

The fourth proportional to 8,538,666.20, 12,807,999.30 and 8,160,752.60 is: 12,241,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538,666.20 : 12,807,999.30 = 8,160,752.60 : x
  2. Step 2: Convert to fraction form
    8,538,666.20/12,807,999.30 = 8,160,752.60/x
  3. Step 3: Cross multiply
    8,538,666.20x = 12,807,999.30 × 8,160,752.60
  4. Step 4: Simplify right side
    8,538,666.20x = 104,522,913,588,273.19
  5. Step 5: Solve for x
    x = 104,522,913,588,273.19/8,538,666.20
  6. Step 6: Final answer
    x = 12,241,128.90

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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.