Home / 20,535,448.86-28,339,256.16-11,242,864.80

Finding the Fourth Proportional to 20,535,448.86, 28,339,256.16 and 11,242,864.80

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Solution

The fourth proportional to 20,535,448.86, 28,339,256.16 and 11,242,864.80 is: 15,515,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,448.86 : 28,339,256.16 = 11,242,864.80 : x
  2. Step 2: Convert to fraction form
    20,535,448.86/28,339,256.16 = 11,242,864.80/x
  3. Step 3: Cross multiply
    20,535,448.86x = 28,339,256.16 × 11,242,864.80
  4. Step 4: Simplify right side
    20,535,448.86x = 318,614,425,539,447.19
  5. Step 5: Solve for x
    x = 318,614,425,539,447.19/20,535,448.86
  6. Step 6: Final answer
    x = 15,515,337.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.