Home / 81,666,272.72-122,492,980.92-35,607,054.80

Finding the Fourth Proportional to 81,666,272.72, 122,492,980.92 and 35,607,054.80

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Solution

The fourth proportional to 81,666,272.72, 122,492,980.92 and 35,607,054.80 is: 53,407,779.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,666,272.72 : 122,492,980.92 = 35,607,054.80 : x
  2. Step 2: Convert to fraction form
    81,666,272.72/122,492,980.92 = 35,607,054.80/x
  3. Step 3: Cross multiply
    81,666,272.72x = 122,492,980.92 × 35,607,054.80
  4. Step 4: Simplify right side
    81,666,272.72x = 4,361,614,284,233,794
  5. Step 5: Solve for x
    x = 4,361,614,284,233,794/81,666,272.72
  6. Step 6: Final answer
    x = 53,407,779.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.