Home / 403,704,707.22-557,112,719.88-218,065,723.92

Finding the Fourth Proportional to 403,704,707.22, 557,112,719.88 and 218,065,723.92

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Solution

The fourth proportional to 403,704,707.22, 557,112,719.88 and 218,065,723.92 is: 300,930,819.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,707.22 : 557,112,719.88 = 218,065,723.92 : x
  2. Step 2: Convert to fraction form
    403,704,707.22/557,112,719.88 = 218,065,723.92/x
  3. Step 3: Cross multiply
    403,704,707.22x = 557,112,719.88 × 218,065,723.92
  4. Step 4: Simplify right side
    403,704,707.22x = 121,487,188,565,672,368
  5. Step 5: Solve for x
    x = 121,487,188,565,672,368/403,704,707.22
  6. Step 6: Final answer
    x = 300,930,819.96

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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.