Home / 86,909,550.20-130,380,071.70-43,669,935.80

Finding the Fourth Proportional to 86,909,550.20, 130,380,071.70 and 43,669,935.80

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Solution

The fourth proportional to 86,909,550.20, 130,380,071.70 and 43,669,935.80 is: 65,512,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,550.20 : 130,380,071.70 = 43,669,935.80 : x
  2. Step 2: Convert to fraction form
    86,909,550.20/130,380,071.70 = 43,669,935.80/x
  3. Step 3: Cross multiply
    86,909,550.20x = 130,380,071.70 × 43,669,935.80
  4. Step 4: Simplify right side
    86,909,550.20x = 5,693,689,360,738,397
  5. Step 5: Solve for x
    x = 5,693,689,360,738,397/86,909,550.20
  6. Step 6: Final answer
    x = 65,512,815.88

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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.