Home / 11,657,987.20-17,486,980.80-8,485,379.20

Finding the Fourth Proportional to 11,657,987.20, 17,486,980.80 and 8,485,379.20

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Solution

The fourth proportional to 11,657,987.20, 17,486,980.80 and 8,485,379.20 is: 12,728,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,657,987.20 : 17,486,980.80 = 8,485,379.20 : x
  2. Step 2: Convert to fraction form
    11,657,987.20/17,486,980.80 = 8,485,379.20/x
  3. Step 3: Cross multiply
    11,657,987.20x = 17,486,980.80 × 8,485,379.20
  4. Step 4: Simplify right side
    11,657,987.20x = 148,383,663,151,119.34
  5. Step 5: Solve for x
    x = 148,383,663,151,119.34/11,657,987.20
  6. Step 6: Final answer
    x = 12,728,068.80

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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.