Home / 128,340,913.92-192,497,723.64-36,222,374.40

Finding the Fourth Proportional to 128,340,913.92, 192,497,723.64 and 36,222,374.40

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Solution

The fourth proportional to 128,340,913.92, 192,497,723.64 and 36,222,374.40 is: 54,329,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,340,913.92 : 192,497,723.64 = 36,222,374.40 : x
  2. Step 2: Convert to fraction form
    128,340,913.92/192,497,723.64 = 36,222,374.40/x
  3. Step 3: Cross multiply
    128,340,913.92x = 192,497,723.64 × 36,222,374.40
  4. Step 4: Simplify right side
    128,340,913.92x = 6,972,724,616,835,810
  5. Step 5: Solve for x
    x = 6,972,724,616,835,810/128,340,913.92
  6. Step 6: Final answer
    x = 54,329,709.86

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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.