Home / 21,568,600.80-32,330,782.80-12,588,530.40

Finding the Fourth Proportional to 21,568,600.80, 32,330,782.80 and 12,588,530.40

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Solution

The fourth proportional to 21,568,600.80, 32,330,782.80 and 12,588,530.40 is: 18,869,886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,568,600.80 : 32,330,782.80 = 12,588,530.40 : x
  2. Step 2: Convert to fraction form
    21,568,600.80/32,330,782.80 = 12,588,530.40/x
  3. Step 3: Cross multiply
    21,568,600.80x = 32,330,782.80 × 12,588,530.40
  4. Step 4: Simplify right side
    21,568,600.80x = 406,997,042,133,597.12
  5. Step 5: Solve for x
    x = 406,997,042,133,597.12/21,568,600.80
  6. Step 6: Final answer
    x = 18,869,886.18

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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.