Home / 188,290,429.90-282,435,644.85-67,078,141.90

Finding the Fourth Proportional to 188,290,429.90, 282,435,644.85 and 67,078,141.90

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Solution

The fourth proportional to 188,290,429.90, 282,435,644.85 and 67,078,141.90 is: 100,617,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,290,429.90 : 282,435,644.85 = 67,078,141.90 : x
  2. Step 2: Convert to fraction form
    188,290,429.90/282,435,644.85 = 67,078,141.90/x
  3. Step 3: Cross multiply
    188,290,429.90x = 282,435,644.85 × 67,078,141.90
  4. Step 4: Simplify right side
    188,290,429.90x = 18,945,258,262,866,304
  5. Step 5: Solve for x
    x = 18,945,258,262,866,304/188,290,429.90
  6. Step 6: Final answer
    x = 100,617,212.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.