Home / 155,118,017.49-214,062,811.91-85,504,560.90

Finding the Fourth Proportional to 155,118,017.49, 214,062,811.91 and 85,504,560.90

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Solution

The fourth proportional to 155,118,017.49, 214,062,811.91 and 85,504,560.90 is: 117,996,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,118,017.49 : 214,062,811.91 = 85,504,560.90 : x
  2. Step 2: Convert to fraction form
    155,118,017.49/214,062,811.91 = 85,504,560.90/x
  3. Step 3: Cross multiply
    155,118,017.49x = 214,062,811.91 × 85,504,560.90
  4. Step 4: Simplify right side
    155,118,017.49x = 18,303,346,737,383,840
  5. Step 5: Solve for x
    x = 18,303,346,737,383,840/155,118,017.49
  6. Step 6: Final answer
    x = 117,996,265.25

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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.