Home / 28,188,276.60-42,282,414.90-19,685,220.60

Finding the Fourth Proportional to 28,188,276.60, 42,282,414.90 and 19,685,220.60

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Solution

The fourth proportional to 28,188,276.60, 42,282,414.90 and 19,685,220.60 is: 29,527,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,276.60 : 42,282,414.90 = 19,685,220.60 : x
  2. Step 2: Convert to fraction form
    28,188,276.60/42,282,414.90 = 19,685,220.60/x
  3. Step 3: Cross multiply
    28,188,276.60x = 42,282,414.90 × 19,685,220.60
  4. Step 4: Simplify right side
    28,188,276.60x = 832,338,664,807,227
  5. Step 5: Solve for x
    x = 832,338,664,807,227/28,188,276.60
  6. Step 6: Final answer
    x = 29,527,830.90

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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.