Home / 403,877,655.36-557,351,140.60-218,238,665.04

Finding the Fourth Proportional to 403,877,655.36, 557,351,140.60 and 218,238,665.04

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Solution

The fourth proportional to 403,877,655.36, 557,351,140.60 and 218,238,665.04 is: 301,169,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,877,655.36 : 557,351,140.60 = 218,238,665.04 : x
  2. Step 2: Convert to fraction form
    403,877,655.36/557,351,140.60 = 218,238,665.04/x
  3. Step 3: Cross multiply
    403,877,655.36x = 557,351,140.60 × 218,238,665.04
  4. Step 4: Simplify right side
    403,877,655.36x = 121,635,568,883,065,344
  5. Step 5: Solve for x
    x = 121,635,568,883,065,344/403,877,655.36
  6. Step 6: Final answer
    x = 301,169,344.90

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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.