Home / 818,374,431.72-1,228,337,728.20-506,538,771.96

Finding the Fourth Proportional to 818,374,431.72, 1,228,337,728.20 and 506,538,771.96

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Solution

The fourth proportional to 818,374,431.72, 1,228,337,728.20 and 506,538,771.96 is: 760,288,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,374,431.72 : 1,228,337,728.20 = 506,538,771.96 : x
  2. Step 2: Convert to fraction form
    818,374,431.72/1,228,337,728.20 = 506,538,771.96/x
  3. Step 3: Cross multiply
    818,374,431.72x = 1,228,337,728.20 × 506,538,771.96
  4. Step 4: Simplify right side
    818,374,431.72x = 622,200,684,394,564,224
  5. Step 5: Solve for x
    x = 622,200,684,394,564,224/818,374,431.72
  6. Step 6: Final answer
    x = 760,288,518.65

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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.