Home / 161,659,276.41-223,089,890.94-87,319,836.57

Finding the Fourth Proportional to 161,659,276.41, 223,089,890.94 and 87,319,836.57

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Solution

The fourth proportional to 161,659,276.41, 223,089,890.94 and 87,319,836.57 is: 120,501,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,659,276.41 : 223,089,890.94 = 87,319,836.57 : x
  2. Step 2: Convert to fraction form
    161,659,276.41/223,089,890.94 = 87,319,836.57/x
  3. Step 3: Cross multiply
    161,659,276.41x = 223,089,890.94 × 87,319,836.57
  4. Step 4: Simplify right side
    161,659,276.41x = 19,480,172,817,299,920
  5. Step 5: Solve for x
    x = 19,480,172,817,299,920/161,659,276.41
  6. Step 6: Final answer
    x = 120,501,422.81

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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.