Home / 21,613,661.85-32,368,543.48-12,363,589.94

Finding the Fourth Proportional to 21,613,661.85, 32,368,543.48 and 12,363,589.94

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Solution

The fourth proportional to 21,613,661.85, 32,368,543.48 and 12,363,589.94 is: 18,515,668.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,613,661.85 : 32,368,543.48 = 12,363,589.94 : x
  2. Step 2: Convert to fraction form
    21,613,661.85/32,368,543.48 = 12,363,589.94/x
  3. Step 3: Cross multiply
    21,613,661.85x = 32,368,543.48 × 12,363,589.94
  4. Step 4: Simplify right side
    21,613,661.85x = 400,191,398,395,392.38
  5. Step 5: Solve for x
    x = 400,191,398,395,392.38/21,613,661.85
  6. Step 6: Final answer
    x = 18,515,668.52

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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.