Home / 665,747,877.36-918,801,224.28-383,500,072.56

Finding the Fourth Proportional to 665,747,877.36, 918,801,224.28 and 383,500,072.56

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Solution

The fourth proportional to 665,747,877.36, 918,801,224.28 and 383,500,072.56 is: 529,269,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,747,877.36 : 918,801,224.28 = 383,500,072.56 : x
  2. Step 2: Convert to fraction form
    665,747,877.36/918,801,224.28 = 383,500,072.56/x
  3. Step 3: Cross multiply
    665,747,877.36x = 918,801,224.28 × 383,500,072.56
  4. Step 4: Simplify right side
    665,747,877.36x = 352,360,336,179,596,800
  5. Step 5: Solve for x
    x = 352,360,336,179,596,800/665,747,877.36
  6. Step 6: Final answer
    x = 529,269,935.61

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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.