Home / 398,578,102.20-597,979,127.70-194,112,847.80

Finding the Fourth Proportional to 398,578,102.20, 597,979,127.70 and 194,112,847.80

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Solution

The fourth proportional to 398,578,102.20, 597,979,127.70 and 194,112,847.80 is: 291,223,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,578,102.20 : 597,979,127.70 = 194,112,847.80 : x
  2. Step 2: Convert to fraction form
    398,578,102.20/597,979,127.70 = 194,112,847.80/x
  3. Step 3: Cross multiply
    398,578,102.20x = 597,979,127.70 × 194,112,847.80
  4. Step 4: Simplify right side
    398,578,102.20x = 116,075,431,402,806,880
  5. Step 5: Solve for x
    x = 116,075,431,402,806,880/398,578,102.20
  6. Step 6: Final answer
    x = 291,223,804.73

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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.