Home / 215,463,416.80-323,240,571.60-69,885,672.16

Finding the Fourth Proportional to 215,463,416.80, 323,240,571.60 and 69,885,672.16

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Solution

The fourth proportional to 215,463,416.80, 323,240,571.60 and 69,885,672.16 is: 104,843,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,463,416.80 : 323,240,571.60 = 69,885,672.16 : x
  2. Step 2: Convert to fraction form
    215,463,416.80/323,240,571.60 = 69,885,672.16/x
  3. Step 3: Cross multiply
    215,463,416.80x = 323,240,571.60 × 69,885,672.16
  4. Step 4: Simplify right side
    215,463,416.80x = 22,589,884,615,648,608
  5. Step 5: Solve for x
    x = 22,589,884,615,648,608/215,463,416.80
  6. Step 6: Final answer
    x = 104,843,248.80

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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.