Home / 403,704,972.46-557,113,086.12-218,065,989.97

Finding the Fourth Proportional to 403,704,972.46, 557,113,086.12 and 218,065,989.97

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Solution

The fourth proportional to 403,704,972.46, 557,113,086.12 and 218,065,989.97 is: 300,931,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,972.46 : 557,113,086.12 = 218,065,989.97 : x
  2. Step 2: Convert to fraction form
    403,704,972.46/557,113,086.12 = 218,065,989.97/x
  3. Step 3: Cross multiply
    403,704,972.46x = 557,113,086.12 × 218,065,989.97
  4. Step 4: Simplify right side
    403,704,972.46x = 121,487,416,649,999,664
  5. Step 5: Solve for x
    x = 121,487,416,649,999,664/403,704,972.46
  6. Step 6: Final answer
    x = 300,931,187.22

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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.