Home / 161,659,279.92-223,089,895.78-87,319,840.08

Finding the Fourth Proportional to 161,659,279.92, 223,089,895.78 and 87,319,840.08

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Solution

The fourth proportional to 161,659,279.92, 223,089,895.78 and 87,319,840.08 is: 120,501,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,659,279.92 : 223,089,895.78 = 87,319,840.08 : x
  2. Step 2: Convert to fraction form
    161,659,279.92/223,089,895.78 = 87,319,840.08/x
  3. Step 3: Cross multiply
    161,659,279.92x = 223,089,895.78 × 87,319,840.08
  4. Step 4: Simplify right side
    161,659,279.92x = 19,480,174,022,973,468
  5. Step 5: Solve for x
    x = 19,480,174,022,973,468/161,659,279.92
  6. Step 6: Final answer
    x = 120,501,427.65

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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.