Home / 161,659,319.55-223,089,950.32-87,319,879.66

Finding the Fourth Proportional to 161,659,319.55, 223,089,950.32 and 87,319,879.66

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Solution

The fourth proportional to 161,659,319.55, 223,089,950.32 and 87,319,879.66 is: 120,501,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,659,319.55 : 223,089,950.32 = 87,319,879.66 : x
  2. Step 2: Convert to fraction form
    161,659,319.55/223,089,950.32 = 87,319,879.66/x
  3. Step 3: Cross multiply
    161,659,319.55x = 223,089,950.32 × 87,319,879.66
  4. Step 4: Simplify right side
    161,659,319.55x = 19,480,187,614,182,328
  5. Step 5: Solve for x
    x = 19,480,187,614,182,328/161,659,319.55
  6. Step 6: Final answer
    x = 120,501,482.18

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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.