Home / 90,910,945.80-136,286,702.55-54,533,809.35

Finding the Fourth Proportional to 90,910,945.80, 136,286,702.55 and 54,533,809.35

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Solution

The fourth proportional to 90,910,945.80, 136,286,702.55 and 54,533,809.35 is: 81,752,895.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,910,945.80 : 136,286,702.55 = 54,533,809.35 : x
  2. Step 2: Convert to fraction form
    90,910,945.80/136,286,702.55 = 54,533,809.35/x
  3. Step 3: Cross multiply
    90,910,945.80x = 136,286,702.55 × 54,533,809.35
  4. Step 4: Simplify right side
    90,910,945.80x = 7,432,233,053,801,860
  5. Step 5: Solve for x
    x = 7,432,233,053,801,860/90,910,945.80
  6. Step 6: Final answer
    x = 81,752,895.52

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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.