Home / 403,704,720.72-557,112,738.51-218,065,737.42

Finding the Fourth Proportional to 403,704,720.72, 557,112,738.51 and 218,065,737.42

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Solution

The fourth proportional to 403,704,720.72, 557,112,738.51 and 218,065,737.42 is: 300,930,838.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,720.72 : 557,112,738.51 = 218,065,737.42 : x
  2. Step 2: Convert to fraction form
    403,704,720.72/557,112,738.51 = 218,065,737.42/x
  3. Step 3: Cross multiply
    403,704,720.72x = 557,112,738.51 × 218,065,737.42
  4. Step 4: Simplify right side
    403,704,720.72x = 121,487,200,149,258,768
  5. Step 5: Solve for x
    x = 121,487,200,149,258,768/403,704,720.72
  6. Step 6: Final answer
    x = 300,930,838.59

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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.