Home / 128,735,481.60-177,653,730.66-69,998,167.38

Finding the Fourth Proportional to 128,735,481.60, 177,653,730.66 and 69,998,167.38

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Solution

The fourth proportional to 128,735,481.60, 177,653,730.66 and 69,998,167.38 is: 96,596,800.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,735,481.60 : 177,653,730.66 = 69,998,167.38 : x
  2. Step 2: Convert to fraction form
    128,735,481.60/177,653,730.66 = 69,998,167.38/x
  3. Step 3: Cross multiply
    128,735,481.60x = 177,653,730.66 × 69,998,167.38
  4. Step 4: Simplify right side
    128,735,481.60x = 12,435,435,574,420,116
  5. Step 5: Solve for x
    x = 12,435,435,574,420,116/128,735,481.60
  6. Step 6: Final answer
    x = 96,596,800.04

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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.