Home / 403,704,743.76-557,112,770.28-218,065,760.40

Finding the Fourth Proportional to 403,704,743.76, 557,112,770.28 and 218,065,760.40

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Solution

The fourth proportional to 403,704,743.76, 557,112,770.28 and 218,065,760.40 is: 300,930,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,743.76 : 557,112,770.28 = 218,065,760.40 : x
  2. Step 2: Convert to fraction form
    403,704,743.76/557,112,770.28 = 218,065,760.40/x
  3. Step 3: Cross multiply
    403,704,743.76x = 557,112,770.28 × 218,065,760.40
  4. Step 4: Simplify right side
    403,704,743.76x = 121,487,219,879,658,720
  5. Step 5: Solve for x
    x = 121,487,219,879,658,720/403,704,743.76
  6. Step 6: Final answer
    x = 300,930,870.29

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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.