Home / 159,843,879.60-220,584,551.04-86,505,021.60

Finding the Fourth Proportional to 159,843,879.60, 220,584,551.04 and 86,505,021.60

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Solution

The fourth proportional to 159,843,879.60, 220,584,551.04 and 86,505,021.60 is: 119,376,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,843,879.60 : 220,584,551.04 = 86,505,021.60 : x
  2. Step 2: Convert to fraction form
    159,843,879.60/220,584,551.04 = 86,505,021.60/x
  3. Step 3: Cross multiply
    159,843,879.60x = 220,584,551.04 × 86,505,021.60
  4. Step 4: Simplify right side
    159,843,879.60x = 19,081,671,352,341,500
  5. Step 5: Solve for x
    x = 19,081,671,352,341,500/159,843,879.60
  6. Step 6: Final answer
    x = 119,376,928.29

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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.