Home / 352,512,155.80-528,768,233.70-256,960,667.80

Finding the Fourth Proportional to 352,512,155.80, 528,768,233.70 and 256,960,667.80

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Solution

The fourth proportional to 352,512,155.80, 528,768,233.70 and 256,960,667.80 is: 385,441,001.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,512,155.80 : 528,768,233.70 = 256,960,667.80 : x
  2. Step 2: Convert to fraction form
    352,512,155.80/528,768,233.70 = 256,960,667.80/x
  3. Step 3: Cross multiply
    352,512,155.80x = 528,768,233.70 × 256,960,667.80
  4. Step 4: Simplify right side
    352,512,155.80x = 135,872,638,442,978,464
  5. Step 5: Solve for x
    x = 135,872,638,442,978,464/352,512,155.80
  6. Step 6: Final answer
    x = 385,441,001.70

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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.