Home / 403,396,721.40-556,681,816.82-224,788,137.72

Finding the Fourth Proportional to 403,396,721.40, 556,681,816.82 and 224,788,137.72

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Solution

The fourth proportional to 403,396,721.40, 556,681,816.82 and 224,788,137.72 is: 310,204,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,396,721.40 : 556,681,816.82 = 224,788,137.72 : x
  2. Step 2: Convert to fraction form
    403,396,721.40/556,681,816.82 = 224,788,137.72/x
  3. Step 3: Cross multiply
    403,396,721.40x = 556,681,816.82 × 224,788,137.72
  4. Step 4: Simplify right side
    403,396,721.40x = 125,135,468,904,430,048
  5. Step 5: Solve for x
    x = 125,135,468,904,430,048/403,396,721.40
  6. Step 6: Final answer
    x = 310,204,476.80

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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.