Home / 90,843,816.40-136,265,724.60-83,828,795.20

Finding the Fourth Proportional to 90,843,816.40, 136,265,724.60 and 83,828,795.20

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Solution

The fourth proportional to 90,843,816.40, 136,265,724.60 and 83,828,795.20 is: 125,743,192.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,843,816.40 : 136,265,724.60 = 83,828,795.20 : x
  2. Step 2: Convert to fraction form
    90,843,816.40/136,265,724.60 = 83,828,795.20/x
  3. Step 3: Cross multiply
    90,843,816.40x = 136,265,724.60 × 83,828,795.20
  4. Step 4: Simplify right side
    90,843,816.40x = 11,422,991,520,273,002
  5. Step 5: Solve for x
    x = 11,422,991,520,273,002/90,843,816.40
  6. Step 6: Final answer
    x = 125,743,192.80

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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.