Home / 521,782,662.24-720,077,608.26-307,162,580.91

Finding the Fourth Proportional to 521,782,662.24, 720,077,608.26 and 307,162,580.91

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Solution

The fourth proportional to 521,782,662.24, 720,077,608.26 and 307,162,580.91 is: 423,894,683.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,782,662.24 : 720,077,608.26 = 307,162,580.91 : x
  2. Step 2: Convert to fraction form
    521,782,662.24/720,077,608.26 = 307,162,580.91/x
  3. Step 3: Cross multiply
    521,782,662.24x = 720,077,608.26 × 307,162,580.91
  4. Step 4: Simplify right side
    521,782,662.24x = 221,180,896,608,641,536
  5. Step 5: Solve for x
    x = 221,180,896,608,641,536/521,782,662.24
  6. Step 6: Final answer
    x = 423,894,683.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.