Home / 12,296,519.80-18,444,779.70-12,128,558.20

Finding the Fourth Proportional to 12,296,519.80, 18,444,779.70 and 12,128,558.20

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Solution

The fourth proportional to 12,296,519.80, 18,444,779.70 and 12,128,558.20 is: 18,192,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,296,519.80 : 18,444,779.70 = 12,128,558.20 : x
  2. Step 2: Convert to fraction form
    12,296,519.80/18,444,779.70 = 12,128,558.20/x
  3. Step 3: Cross multiply
    12,296,519.80x = 18,444,779.70 × 12,128,558.20
  4. Step 4: Simplify right side
    12,296,519.80x = 223,708,584,077,628.53
  5. Step 5: Solve for x
    x = 223,708,584,077,628.53/12,296,519.80
  6. Step 6: Final answer
    x = 18,192,837.30

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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.