Home / 197,990,643.80-297,269,400.90-111,897,201.80

Finding the Fourth Proportional to 197,990,643.80, 297,269,400.90 and 111,897,201.80

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Solution

The fourth proportional to 197,990,643.80, 297,269,400.90 and 111,897,201.80 is: 168,005,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,990,643.80 : 297,269,400.90 = 111,897,201.80 : x
  2. Step 2: Convert to fraction form
    197,990,643.80/297,269,400.90 = 111,897,201.80/x
  3. Step 3: Cross multiply
    197,990,643.80x = 297,269,400.90 × 111,897,201.80
  4. Step 4: Simplify right side
    197,990,643.80x = 33,263,614,141,472,400
  5. Step 5: Solve for x
    x = 33,263,614,141,472,400/197,990,643.80
  6. Step 6: Final answer
    x = 168,005,990.10

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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.