Home / 374,303,769.30-561,493,173.15-128,628,047.70

Finding the Fourth Proportional to 374,303,769.30, 561,493,173.15 and 128,628,047.70

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Solution

The fourth proportional to 374,303,769.30, 561,493,173.15 and 128,628,047.70 is: 192,954,964.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,303,769.30 : 561,493,173.15 = 128,628,047.70 : x
  2. Step 2: Convert to fraction form
    374,303,769.30/561,493,173.15 = 128,628,047.70/x
  3. Step 3: Cross multiply
    374,303,769.30x = 561,493,173.15 × 128,628,047.70
  4. Step 4: Simplify right side
    374,303,769.30x = 72,223,770,659,162,560
  5. Step 5: Solve for x
    x = 72,223,770,659,162,560/374,303,769.30
  6. Step 6: Final answer
    x = 192,954,964.88

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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.