Home / 403,704,743.72-557,112,770.28-218,065,760.44

Finding the Fourth Proportional to 403,704,743.72, 557,112,770.28 and 218,065,760.44

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Solution

The fourth proportional to 403,704,743.72, 557,112,770.28 and 218,065,760.44 is: 300,930,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,743.72 : 557,112,770.28 = 218,065,760.44 : x
  2. Step 2: Convert to fraction form
    403,704,743.72/557,112,770.28 = 218,065,760.44/x
  3. Step 3: Cross multiply
    403,704,743.72x = 557,112,770.28 × 218,065,760.44
  4. Step 4: Simplify right side
    403,704,743.72x = 121,487,219,901,943,232
  5. Step 5: Solve for x
    x = 121,487,219,901,943,232/403,704,743.72
  6. Step 6: Final answer
    x = 300,930,870.37

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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.