Home / 315,335,035.34-432,001,781.76-303,545,336.30

Finding the Fourth Proportional to 315,335,035.34, 432,001,781.76 and 303,545,336.30

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Solution

The fourth proportional to 315,335,035.34, 432,001,781.76 and 303,545,336.30 is: 415,850,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,335,035.34 : 432,001,781.76 = 303,545,336.30 : x
  2. Step 2: Convert to fraction form
    315,335,035.34/432,001,781.76 = 303,545,336.30/x
  3. Step 3: Cross multiply
    315,335,035.34x = 432,001,781.76 × 303,545,336.30
  4. Step 4: Simplify right side
    315,335,035.34x = 131,132,126,126,538,416
  5. Step 5: Solve for x
    x = 131,132,126,126,538,416/315,335,035.34
  6. Step 6: Final answer
    x = 415,850,163.89

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.