Home / 118,124,906.70-177,187,360.05-105,689,187.30

Finding the Fourth Proportional to 118,124,906.70, 177,187,360.05 and 105,689,187.30

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Solution

The fourth proportional to 118,124,906.70, 177,187,360.05 and 105,689,187.30 is: 158,533,780.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,124,906.70 : 177,187,360.05 = 105,689,187.30 : x
  2. Step 2: Convert to fraction form
    118,124,906.70/177,187,360.05 = 105,689,187.30/x
  3. Step 3: Cross multiply
    118,124,906.70x = 177,187,360.05 × 105,689,187.30
  4. Step 4: Simplify right side
    118,124,906.70x = 18,726,788,083,516,988
  5. Step 5: Solve for x
    x = 18,726,788,083,516,988/118,124,906.70
  6. Step 6: Final answer
    x = 158,533,780.95

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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.