Home / 490,068,018.20-734,206,232.10-398,696,907.80

Finding the Fourth Proportional to 490,068,018.20, 734,206,232.10 and 398,696,907.80

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Solution

The fourth proportional to 490,068,018.20, 734,206,232.10 and 398,696,907.80 is: 597,316,583.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,068,018.20 : 734,206,232.10 = 398,696,907.80 : x
  2. Step 2: Convert to fraction form
    490,068,018.20/734,206,232.10 = 398,696,907.80/x
  3. Step 3: Cross multiply
    490,068,018.20x = 734,206,232.10 × 398,696,907.80
  4. Step 4: Simplify right side
    490,068,018.20x = 292,725,754,425,759,104
  5. Step 5: Solve for x
    x = 292,725,754,425,759,104/490,068,018.20
  6. Step 6: Final answer
    x = 597,316,583.73

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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.