Home / 278,701,483.48-384,632,553.70-153,275,784.15

Finding the Fourth Proportional to 278,701,483.48, 384,632,553.70 and 153,275,784.15

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Solution

The fourth proportional to 278,701,483.48, 384,632,553.70 and 153,275,784.15 is: 211,534,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,701,483.48 : 384,632,553.70 = 153,275,784.15 : x
  2. Step 2: Convert to fraction form
    278,701,483.48/384,632,553.70 = 153,275,784.15/x
  3. Step 3: Cross multiply
    278,701,483.48x = 384,632,553.70 × 153,275,784.15
  4. Step 4: Simplify right side
    278,701,483.48x = 58,954,856,279,618,456
  5. Step 5: Solve for x
    x = 58,954,856,279,618,456/278,701,483.48
  6. Step 6: Final answer
    x = 211,534,059.83

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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.