Home / 90,365,847.40-135,454,292.70-49,362,221.80

Finding the Fourth Proportional to 90,365,847.40, 135,454,292.70 and 49,362,221.80

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Solution

The fourth proportional to 90,365,847.40, 135,454,292.70 and 49,362,221.80 is: 73,991,724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,365,847.40 : 135,454,292.70 = 49,362,221.80 : x
  2. Step 2: Convert to fraction form
    90,365,847.40/135,454,292.70 = 49,362,221.80/x
  3. Step 3: Cross multiply
    90,365,847.40x = 135,454,292.70 × 49,362,221.80
  4. Step 4: Simplify right side
    90,365,847.40x = 6,686,324,840,019,520
  5. Step 5: Solve for x
    x = 6,686,324,840,019,520/90,365,847.40
  6. Step 6: Final answer
    x = 73,991,724.00

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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.