Home / 128,269,511.60-192,404,267.40-47,521,972.40

Finding the Fourth Proportional to 128,269,511.60, 192,404,267.40 and 47,521,972.40

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Solution

The fourth proportional to 128,269,511.60, 192,404,267.40 and 47,521,972.40 is: 71,282,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,269,511.60 : 192,404,267.40 = 47,521,972.40 : x
  2. Step 2: Convert to fraction form
    128,269,511.60/192,404,267.40 = 47,521,972.40/x
  3. Step 3: Cross multiply
    128,269,511.60x = 192,404,267.40 × 47,521,972.40
  4. Step 4: Simplify right side
    128,269,511.60x = 9,143,430,285,025,020
  5. Step 5: Solve for x
    x = 9,143,430,285,025,020/128,269,511.60
  6. Step 6: Final answer
    x = 71,282,958.60

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1.5x scale

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.