Home / 200,617,672.80-300,926,509.20-145,914,679.20

Finding the Fourth Proportional to 200,617,672.80, 300,926,509.20 and 145,914,679.20

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Solution

The fourth proportional to 200,617,672.80, 300,926,509.20 and 145,914,679.20 is: 218,872,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,617,672.80 : 300,926,509.20 = 145,914,679.20 : x
  2. Step 2: Convert to fraction form
    200,617,672.80/300,926,509.20 = 145,914,679.20/x
  3. Step 3: Cross multiply
    200,617,672.80x = 300,926,509.20 × 145,914,679.20
  4. Step 4: Simplify right side
    200,617,672.80x = 43,909,595,052,693,840
  5. Step 5: Solve for x
    x = 43,909,595,052,693,840/200,617,672.80
  6. Step 6: Final answer
    x = 218,872,018.80

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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.