Home / 233,073,145.85-321,640,973.28-128,651,239.31

Finding the Fourth Proportional to 233,073,145.85, 321,640,973.28 and 128,651,239.31

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Solution

The fourth proportional to 233,073,145.85, 321,640,973.28 and 128,651,239.31 is: 177,538,727.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,073,145.85 : 321,640,973.28 = 128,651,239.31 : x
  2. Step 2: Convert to fraction form
    233,073,145.85/321,640,973.28 = 128,651,239.31/x
  3. Step 3: Cross multiply
    233,073,145.85x = 321,640,973.28 × 128,651,239.31
  4. Step 4: Simplify right side
    233,073,145.85x = 41,379,509,823,738,392
  5. Step 5: Solve for x
    x = 41,379,509,823,738,392/233,073,145.85
  6. Step 6: Final answer
    x = 177,538,727.91

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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.