Home / 86,909,604.20-130,380,152.70-43,669,989.80

Finding the Fourth Proportional to 86,909,604.20, 130,380,152.70 and 43,669,989.80

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Solution

The fourth proportional to 86,909,604.20, 130,380,152.70 and 43,669,989.80 is: 65,512,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,604.20 : 130,380,152.70 = 43,669,989.80 : x
  2. Step 2: Convert to fraction form
    86,909,604.20/130,380,152.70 = 43,669,989.80/x
  3. Step 3: Cross multiply
    86,909,604.20x = 130,380,152.70 × 43,669,989.80
  4. Step 4: Simplify right side
    86,909,604.20x = 5,693,699,938,531,442
  5. Step 5: Solve for x
    x = 5,693,699,938,531,442/86,909,604.20
  6. Step 6: Final answer
    x = 65,512,896.89

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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.