Home / 86,909,583.70-130,380,121.95-43,669,969.30

Finding the Fourth Proportional to 86,909,583.70, 130,380,121.95 and 43,669,969.30

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Solution

The fourth proportional to 86,909,583.70, 130,380,121.95 and 43,669,969.30 is: 65,512,866.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,583.70 : 130,380,121.95 = 43,669,969.30 : x
  2. Step 2: Convert to fraction form
    86,909,583.70/130,380,121.95 = 43,669,969.30/x
  3. Step 3: Cross multiply
    86,909,583.70x = 130,380,121.95 × 43,669,969.30
  4. Step 4: Simplify right side
    86,909,583.70x = 5,693,695,922,886,756
  5. Step 5: Solve for x
    x = 5,693,695,922,886,756/86,909,583.70
  6. Step 6: Final answer
    x = 65,512,866.14

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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.