Home / 118,368,026.40-177,552,039.60-85,867,456.80

Finding the Fourth Proportional to 118,368,026.40, 177,552,039.60 and 85,867,456.80

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Solution

The fourth proportional to 118,368,026.40, 177,552,039.60 and 85,867,456.80 is: 128,801,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,368,026.40 : 177,552,039.60 = 85,867,456.80 : x
  2. Step 2: Convert to fraction form
    118,368,026.40/177,552,039.60 = 85,867,456.80/x
  3. Step 3: Cross multiply
    118,368,026.40x = 177,552,039.60 × 85,867,456.80
  4. Step 4: Simplify right side
    118,368,026.40x = 15,245,942,090,104,888
  5. Step 5: Solve for x
    x = 15,245,942,090,104,888/118,368,026.40
  6. Step 6: Final answer
    x = 128,801,185.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.