Home / 20,580,740.86-28,401,462.98-11,288,386.57

Finding the Fourth Proportional to 20,580,740.86, 28,401,462.98 and 11,288,386.57

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Solution

The fourth proportional to 20,580,740.86, 28,401,462.98 and 11,288,386.57 is: 15,577,995.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580,740.86 : 28,401,462.98 = 11,288,386.57 : x
  2. Step 2: Convert to fraction form
    20,580,740.86/28,401,462.98 = 11,288,386.57/x
  3. Step 3: Cross multiply
    20,580,740.86x = 28,401,462.98 × 11,288,386.57
  4. Step 4: Simplify right side
    20,580,740.86x = 320,606,693,205,535.88
  5. Step 5: Solve for x
    x = 320,606,693,205,535.88/20,580,740.86
  6. Step 6: Final answer
    x = 15,577,995.73

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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.