Home / 54,458,793.60-81,688,190.40-19,915,128.60

Finding the Fourth Proportional to 54,458,793.60, 81,688,190.40 and 19,915,128.60

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Solution

The fourth proportional to 54,458,793.60, 81,688,190.40 and 19,915,128.60 is: 29,872,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,458,793.60 : 81,688,190.40 = 19,915,128.60 : x
  2. Step 2: Convert to fraction form
    54,458,793.60/81,688,190.40 = 19,915,128.60/x
  3. Step 3: Cross multiply
    54,458,793.60x = 81,688,190.40 × 19,915,128.60
  4. Step 4: Simplify right side
    54,458,793.60x = 1,626,830,816,917,285.75
  5. Step 5: Solve for x
    x = 1,626,830,816,917,285.75/54,458,793.60
  6. Step 6: Final answer
    x = 29,872,692.90

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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.