Home / 12,020,713.92-18,031,268.16-3,385,021.76

Finding the Fourth Proportional to 12,020,713.92, 18,031,268.16 and 3,385,021.76

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Solution

The fourth proportional to 12,020,713.92, 18,031,268.16 and 3,385,021.76 is: 5,077,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020,713.92 : 18,031,268.16 = 3,385,021.76 : x
  2. Step 2: Convert to fraction form
    12,020,713.92/18,031,268.16 = 3,385,021.76/x
  3. Step 3: Cross multiply
    12,020,713.92x = 18,031,268.16 × 3,385,021.76
  4. Step 4: Simplify right side
    12,020,713.92x = 61,036,235,081,995.16
  5. Step 5: Solve for x
    x = 61,036,235,081,995.16/12,020,713.92
  6. Step 6: Final answer
    x = 5,077,588.19

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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.