Home / 86,909,572.70-130,380,105.45-43,669,958.30

Finding the Fourth Proportional to 86,909,572.70, 130,380,105.45 and 43,669,958.30

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Solution

The fourth proportional to 86,909,572.70, 130,380,105.45 and 43,669,958.30 is: 65,512,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,572.70 : 130,380,105.45 = 43,669,958.30 : x
  2. Step 2: Convert to fraction form
    86,909,572.70/130,380,105.45 = 43,669,958.30/x
  3. Step 3: Cross multiply
    86,909,572.70x = 130,380,105.45 × 43,669,958.30
  4. Step 4: Simplify right side
    86,909,572.70x = 5,693,693,768,151,102
  5. Step 5: Solve for x
    x = 5,693,693,768,151,102/86,909,572.70
  6. Step 6: Final answer
    x = 65,512,849.64

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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.