Home / 403,704,741.76-557,112,767.52-218,065,758.40

Finding the Fourth Proportional to 403,704,741.76, 557,112,767.52 and 218,065,758.40

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Solution

The fourth proportional to 403,704,741.76, 557,112,767.52 and 218,065,758.40 is: 300,930,867.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,741.76 : 557,112,767.52 = 218,065,758.40 : x
  2. Step 2: Convert to fraction form
    403,704,741.76/557,112,767.52 = 218,065,758.40/x
  3. Step 3: Cross multiply
    403,704,741.76x = 557,112,767.52 × 218,065,758.40
  4. Step 4: Simplify right side
    403,704,741.76x = 121,487,218,163,571,680
  5. Step 5: Solve for x
    x = 121,487,218,163,571,680/403,704,741.76
  6. Step 6: Final answer
    x = 300,930,867.53

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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.