Home / 86,909,586.20-130,380,125.70-43,669,971.80

Finding the Fourth Proportional to 86,909,586.20, 130,380,125.70 and 43,669,971.80

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Solution

The fourth proportional to 86,909,586.20, 130,380,125.70 and 43,669,971.80 is: 65,512,869.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,586.20 : 130,380,125.70 = 43,669,971.80 : x
  2. Step 2: Convert to fraction form
    86,909,586.20/130,380,125.70 = 43,669,971.80/x
  3. Step 3: Cross multiply
    86,909,586.20x = 130,380,125.70 × 43,669,971.80
  4. Step 4: Simplify right side
    86,909,586.20x = 5,693,696,412,599,455
  5. Step 5: Solve for x
    x = 5,693,696,412,599,455/86,909,586.20
  6. Step 6: Final answer
    x = 65,512,869.89

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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.