Home / 130,236,164.55-179,728,012.80-71,504,243.91

Finding the Fourth Proportional to 130,236,164.55, 179,728,012.80 and 71,504,243.91

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Solution

The fourth proportional to 130,236,164.55, 179,728,012.80 and 71,504,243.91 is: 98,677,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,236,164.55 : 179,728,012.80 = 71,504,243.91 : x
  2. Step 2: Convert to fraction form
    130,236,164.55/179,728,012.80 = 71,504,243.91/x
  3. Step 3: Cross multiply
    130,236,164.55x = 179,728,012.80 × 71,504,243.91
  4. Step 4: Simplify right side
    130,236,164.55x = 12,851,315,664,710,802
  5. Step 5: Solve for x
    x = 12,851,315,664,710,802/130,236,164.55
  6. Step 6: Final answer
    x = 98,677,012.71

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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.