Home / 419,392,345.49-629,088,500.01-398,421,082.25

Finding the Fourth Proportional to 419,392,345.49, 629,088,500.01 and 398,421,082.25

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Solution

The fourth proportional to 419,392,345.49, 629,088,500.01 and 398,421,082.25 is: 597,631,606.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,392,345.49 : 629,088,500.01 = 398,421,082.25 : x
  2. Step 2: Convert to fraction form
    419,392,345.49/629,088,500.01 = 398,421,082.25/x
  3. Step 3: Cross multiply
    419,392,345.49x = 629,088,500.01 × 398,421,082.25
  4. Step 4: Simplify right side
    419,392,345.49x = 250,642,121,005,013,344
  5. Step 5: Solve for x
    x = 250,642,121,005,013,344/419,392,345.49
  6. Step 6: Final answer
    x = 597,631,606.06

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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.