Home / 152,160,402.15-209,963,640.04-85,183,027.85

Finding the Fourth Proportional to 152,160,402.15, 209,963,640.04 and 85,183,027.85

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Solution

The fourth proportional to 152,160,402.15, 209,963,640.04 and 85,183,027.85 is: 117,542,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,160,402.15 : 209,963,640.04 = 85,183,027.85 : x
  2. Step 2: Convert to fraction form
    152,160,402.15/209,963,640.04 = 85,183,027.85/x
  3. Step 3: Cross multiply
    152,160,402.15x = 209,963,640.04 × 85,183,027.85
  4. Step 4: Simplify right side
    152,160,402.15x = 17,885,338,597,326,648
  5. Step 5: Solve for x
    x = 17,885,338,597,326,648/152,160,402.15
  6. Step 6: Final answer
    x = 117,542,661.20

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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.