Home / 505,007,682.56-697,391,917.76-477,495,178.80

Finding the Fourth Proportional to 505,007,682.56, 697,391,917.76 and 477,495,178.80

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Solution

The fourth proportional to 505,007,682.56, 697,391,917.76 and 477,495,178.80 is: 659,398,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,007,682.56 : 697,391,917.76 = 477,495,178.80 : x
  2. Step 2: Convert to fraction form
    505,007,682.56/697,391,917.76 = 477,495,178.80/x
  3. Step 3: Cross multiply
    505,007,682.56x = 697,391,917.76 × 477,495,178.80
  4. Step 4: Simplify right side
    505,007,682.56x = 333,001,278,464,486,080
  5. Step 5: Solve for x
    x = 333,001,278,464,486,080/505,007,682.56
  6. Step 6: Final answer
    x = 659,398,440.78

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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.