Home / 519,491,009.28-779,217,613.44-155,975,919.36

Finding the Fourth Proportional to 519,491,009.28, 779,217,613.44 and 155,975,919.36

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Solution

The fourth proportional to 519,491,009.28, 779,217,613.44 and 155,975,919.36 is: 233,958,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,491,009.28 : 779,217,613.44 = 155,975,919.36 : x
  2. Step 2: Convert to fraction form
    519,491,009.28/779,217,613.44 = 155,975,919.36/x
  3. Step 3: Cross multiply
    519,491,009.28x = 779,217,613.44 × 155,975,919.36
  4. Step 4: Simplify right side
    519,491,009.28x = 121,539,183,637,809,120
  5. Step 5: Solve for x
    x = 121,539,183,637,809,120/519,491,009.28
  6. Step 6: Final answer
    x = 233,958,204.22

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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.