Home / 11,918,305.20-17,877,457.80-11,067,999.60

Finding the Fourth Proportional to 11,918,305.20, 17,877,457.80 and 11,067,999.60

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Solution

The fourth proportional to 11,918,305.20, 17,877,457.80 and 11,067,999.60 is: 16,601,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918,305.20 : 17,877,457.80 = 11,067,999.60 : x
  2. Step 2: Convert to fraction form
    11,918,305.20/17,877,457.80 = 11,067,999.60/x
  3. Step 3: Cross multiply
    11,918,305.20x = 17,877,457.80 × 11,067,999.60
  4. Step 4: Simplify right side
    11,918,305.20x = 197,867,695,779,416.88
  5. Step 5: Solve for x
    x = 197,867,695,779,416.88/11,918,305.20
  6. Step 6: Final answer
    x = 16,601,999.40

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1.5x scale

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.