Home / 161,659,321.54-223,089,953.09-87,319,881.66

Finding the Fourth Proportional to 161,659,321.54, 223,089,953.09 and 87,319,881.66

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Solution

The fourth proportional to 161,659,321.54, 223,089,953.09 and 87,319,881.66 is: 120,501,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,659,321.54 : 223,089,953.09 = 87,319,881.66 : x
  2. Step 2: Convert to fraction form
    161,659,321.54/223,089,953.09 = 87,319,881.66/x
  3. Step 3: Cross multiply
    161,659,321.54x = 223,089,953.09 × 87,319,881.66
  4. Step 4: Simplify right side
    161,659,321.54x = 19,480,188,303,353,752
  5. Step 5: Solve for x
    x = 19,480,188,303,353,752/161,659,321.54
  6. Step 6: Final answer
    x = 120,501,484.96

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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.