Home / 233,074,019.58-321,642,178.50-128,652,110.61

Finding the Fourth Proportional to 233,074,019.58, 321,642,178.50 and 128,652,110.61

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Solution

The fourth proportional to 233,074,019.58, 321,642,178.50 and 128,652,110.61 is: 177,539,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,074,019.58 : 321,642,178.50 = 128,652,110.61 : x
  2. Step 2: Convert to fraction form
    233,074,019.58/321,642,178.50 = 128,652,110.61/x
  3. Step 3: Cross multiply
    233,074,019.58x = 321,642,178.50 × 128,652,110.61
  4. Step 4: Simplify right side
    233,074,019.58x = 41,379,945,125,223,360
  5. Step 5: Solve for x
    x = 41,379,945,125,223,360/233,074,019.58
  6. Step 6: Final answer
    x = 177,539,930.02

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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.