Home / 228,629,307.62-315,510,661.49-124,208,127.65

Finding the Fourth Proportional to 228,629,307.62, 315,510,661.49 and 124,208,127.65

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Solution

The fourth proportional to 228,629,307.62, 315,510,661.49 and 124,208,127.65 is: 171,408,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,629,307.62 : 315,510,661.49 = 124,208,127.65 : x
  2. Step 2: Convert to fraction form
    228,629,307.62/315,510,661.49 = 124,208,127.65/x
  3. Step 3: Cross multiply
    228,629,307.62x = 315,510,661.49 × 124,208,127.65
  4. Step 4: Simplify right side
    228,629,307.62x = 39,188,988,516,664,824
  5. Step 5: Solve for x
    x = 39,188,988,516,664,824/228,629,307.62
  6. Step 6: Final answer
    x = 171,408,420.58

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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.