Home / 415,883,144.53-623,920,388.48-139,571,025.40

Finding the Fourth Proportional to 415,883,144.53, 623,920,388.48 and 139,571,025.40

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Solution

The fourth proportional to 415,883,144.53, 623,920,388.48 and 139,571,025.40 is: 209,388,645.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,883,144.53 : 623,920,388.48 = 139,571,025.40 : x
  2. Step 2: Convert to fraction form
    415,883,144.53/623,920,388.48 = 139,571,025.40/x
  3. Step 3: Cross multiply
    415,883,144.53x = 623,920,388.48 × 139,571,025.40
  4. Step 4: Simplify right side
    415,883,144.53x = 87,081,208,387,422,096
  5. Step 5: Solve for x
    x = 87,081,208,387,422,096/415,883,144.53
  6. Step 6: Final answer
    x = 209,388,645.66

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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.