Home / 20,165,507.35-30,240,849.93-7,208,161.54

Finding the Fourth Proportional to 20,165,507.35, 30,240,849.93 and 7,208,161.54

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Solution

The fourth proportional to 20,165,507.35, 30,240,849.93 and 7,208,161.54 is: 10,809,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165,507.35 : 30,240,849.93 = 7,208,161.54 : x
  2. Step 2: Convert to fraction form
    20,165,507.35/30,240,849.93 = 7,208,161.54/x
  3. Step 3: Cross multiply
    20,165,507.35x = 30,240,849.93 × 7,208,161.54
  4. Step 4: Simplify right side
    20,165,507.35x = 217,980,931,402,337.69
  5. Step 5: Solve for x
    x = 217,980,931,402,337.69/20,165,507.35
  6. Step 6: Final answer
    x = 10,809,593.21

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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.