Home / 209,951,998.40-314,927,997.60-148,142,129.60

Finding the Fourth Proportional to 209,951,998.40, 314,927,997.60 and 148,142,129.60

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Solution

The fourth proportional to 209,951,998.40, 314,927,997.60 and 148,142,129.60 is: 222,213,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,951,998.40 : 314,927,997.60 = 148,142,129.60 : x
  2. Step 2: Convert to fraction form
    209,951,998.40/314,927,997.60 = 148,142,129.60/x
  3. Step 3: Cross multiply
    209,951,998.40x = 314,927,997.60 × 148,142,129.60
  4. Step 4: Simplify right side
    209,951,998.40x = 46,654,104,235,127,688
  5. Step 5: Solve for x
    x = 46,654,104,235,127,688/209,951,998.40
  6. Step 6: Final answer
    x = 222,213,194.40

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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.