Home / 233,092,661.76-321,685,678.08-128,690,841.60

Finding the Fourth Proportional to 233,092,661.76, 321,685,678.08 and 128,690,841.60

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Solution

The fourth proportional to 233,092,661.76, 321,685,678.08 and 128,690,841.60 is: 177,603,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,092,661.76 : 321,685,678.08 = 128,690,841.60 : x
  2. Step 2: Convert to fraction form
    233,092,661.76/321,685,678.08 = 128,690,841.60/x
  3. Step 3: Cross multiply
    233,092,661.76x = 321,685,678.08 × 128,690,841.60
  4. Step 4: Simplify right side
    233,092,661.76x = 41,398,000,642,781,872
  5. Step 5: Solve for x
    x = 41,398,000,642,781,872/233,092,661.76
  6. Step 6: Final answer
    x = 177,603,191.50

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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.