Home / 216,441,521.84-298,937,529.43-142,432,480.73

Finding the Fourth Proportional to 216,441,521.84, 298,937,529.43 and 142,432,480.73

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Solution

The fourth proportional to 216,441,521.84, 298,937,529.43 and 142,432,480.73 is: 196,720,174.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,441,521.84 : 298,937,529.43 = 142,432,480.73 : x
  2. Step 2: Convert to fraction form
    216,441,521.84/298,937,529.43 = 142,432,480.73/x
  3. Step 3: Cross multiply
    216,441,521.84x = 298,937,529.43 × 142,432,480.73
  4. Step 4: Simplify right side
    216,441,521.84x = 42,578,413,900,403,544
  5. Step 5: Solve for x
    x = 42,578,413,900,403,544/216,441,521.84
  6. Step 6: Final answer
    x = 196,720,174.29

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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.