Home / 161,659,293.57-223,089,914.64-87,319,853.78

Finding the Fourth Proportional to 161,659,293.57, 223,089,914.64 and 87,319,853.78

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Solution

The fourth proportional to 161,659,293.57, 223,089,914.64 and 87,319,853.78 is: 120,501,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,659,293.57 : 223,089,914.64 = 87,319,853.78 : x
  2. Step 2: Convert to fraction form
    161,659,293.57/223,089,914.64 = 87,319,853.78/x
  3. Step 3: Cross multiply
    161,659,293.57x = 223,089,914.64 × 87,319,853.78
  4. Step 4: Simplify right side
    161,659,293.57x = 19,480,178,724,605,432
  5. Step 5: Solve for x
    x = 19,480,178,724,605,432/161,659,293.57
  6. Step 6: Final answer
    x = 120,501,446.56

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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.