Home / 398,700,620.20-598,162,904.70-194,235,365.80

Finding the Fourth Proportional to 398,700,620.20, 598,162,904.70 and 194,235,365.80

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Solution

The fourth proportional to 398,700,620.20, 598,162,904.70 and 194,235,365.80 is: 291,407,599.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,700,620.20 : 598,162,904.70 = 194,235,365.80 : x
  2. Step 2: Convert to fraction form
    398,700,620.20/598,162,904.70 = 194,235,365.80/x
  3. Step 3: Cross multiply
    398,700,620.20x = 598,162,904.70 × 194,235,365.80
  4. Step 4: Simplify right side
    398,700,620.20x = 116,184,390,602,395,056
  5. Step 5: Solve for x
    x = 116,184,390,602,395,056/398,700,620.20
  6. Step 6: Final answer
    x = 291,407,599.38

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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.