Home / 519,491,011.28-779,217,616.44-155,975,921.36

Finding the Fourth Proportional to 519,491,011.28, 779,217,616.44 and 155,975,921.36

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Solution

The fourth proportional to 519,491,011.28, 779,217,616.44 and 155,975,921.36 is: 233,958,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,491,011.28 : 779,217,616.44 = 155,975,921.36 : x
  2. Step 2: Convert to fraction form
    519,491,011.28/779,217,616.44 = 155,975,921.36/x
  3. Step 3: Cross multiply
    519,491,011.28x = 779,217,616.44 × 155,975,921.36
  4. Step 4: Simplify right side
    519,491,011.28x = 121,539,185,664,172,096
  5. Step 5: Solve for x
    x = 121,539,185,664,172,096/519,491,011.28
  6. Step 6: Final answer
    x = 233,958,207.22

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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.