Home / 131,048,802.38-180,912,822.63-81,505,147.52

Finding the Fourth Proportional to 131,048,802.38, 180,912,822.63 and 81,505,147.52

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Solution

The fourth proportional to 131,048,802.38, 180,912,822.63 and 81,505,147.52 is: 112,517,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,048,802.38 : 180,912,822.63 = 81,505,147.52 : x
  2. Step 2: Convert to fraction form
    131,048,802.38/180,912,822.63 = 81,505,147.52/x
  3. Step 3: Cross multiply
    131,048,802.38x = 180,912,822.63 × 81,505,147.52
  4. Step 4: Simplify right side
    131,048,802.38x = 14,745,326,296,717,744
  5. Step 5: Solve for x
    x = 14,745,326,296,717,744/131,048,802.38
  6. Step 6: Final answer
    x = 112,517,825.64

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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.