Home / 402,651,378.80-555,650,190.52-233,112,765.09

Finding the Fourth Proportional to 402,651,378.80, 555,650,190.52 and 233,112,765.09

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Solution

The fourth proportional to 402,651,378.80, 555,650,190.52 and 233,112,765.09 is: 321,690,571.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,651,378.80 : 555,650,190.52 = 233,112,765.09 : x
  2. Step 2: Convert to fraction form
    402,651,378.80/555,650,190.52 = 233,112,765.09/x
  3. Step 3: Cross multiply
    402,651,378.80x = 555,650,190.52 × 233,112,765.09
  4. Step 4: Simplify right side
    402,651,378.80x = 129,529,152,334,902,496
  5. Step 5: Solve for x
    x = 129,529,152,334,902,496/402,651,378.80
  6. Step 6: Final answer
    x = 321,690,571.93

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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.