Home / 403,704,979.76-557,113,096.32-218,065,997

Finding the Fourth Proportional to 403,704,979.76, 557,113,096.32 and 218,065,997

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Solution

The fourth proportional to 403,704,979.76, 557,113,096.32 and 218,065,997 is: 300,931,196.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,979.76 : 557,113,096.32 = 218,065,997 : x
  2. Step 2: Convert to fraction form
    403,704,979.76/557,113,096.32 = 218,065,997/x
  3. Step 3: Cross multiply
    403,704,979.76x = 557,113,096.32 × 218,065,997
  4. Step 4: Simplify right side
    403,704,979.76x = 121,487,422,790,777,840
  5. Step 5: Solve for x
    x = 121,487,422,790,777,840/403,704,979.76
  6. Step 6: Final answer
    x = 300,931,196.99

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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.