Home / 807,434,281.46-1,211,151,420.81-194,018,507.21

Finding the Fourth Proportional to 807,434,281.46, 1,211,151,420.81 and 194,018,507.21

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Solution

The fourth proportional to 807,434,281.46, 1,211,151,420.81 and 194,018,507.21 is: 291,027,760.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,434,281.46 : 1,211,151,420.81 = 194,018,507.21 : x
  2. Step 2: Convert to fraction form
    807,434,281.46/1,211,151,420.81 = 194,018,507.21/x
  3. Step 3: Cross multiply
    807,434,281.46x = 1,211,151,420.81 × 194,018,507.21
  4. Step 4: Simplify right side
    807,434,281.46x = 234,985,790,664,770,976
  5. Step 5: Solve for x
    x = 234,985,790,664,770,976/807,434,281.46
  6. Step 6: Final answer
    x = 291,027,760.48

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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.