Home / 20,337,501.75-28,058,923.58-11,515,747.20

Finding the Fourth Proportional to 20,337,501.75, 28,058,923.58 and 11,515,747.20

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Solution

The fourth proportional to 20,337,501.75, 28,058,923.58 and 11,515,747.20 is: 15,887,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337,501.75 : 28,058,923.58 = 11,515,747.20 : x
  2. Step 2: Convert to fraction form
    20,337,501.75/28,058,923.58 = 11,515,747.20/x
  3. Step 3: Cross multiply
    20,337,501.75x = 28,058,923.58 × 11,515,747.20
  4. Step 4: Simplify right side
    20,337,501.75x = 323,119,470,593,820.19
  5. Step 5: Solve for x
    x = 323,119,470,593,820.19/20,337,501.75
  6. Step 6: Final answer
    x = 15,887,864.43

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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.