Home / 86,909,579.70-130,380,115.95-43,669,965.30

Finding the Fourth Proportional to 86,909,579.70, 130,380,115.95 and 43,669,965.30

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Solution

The fourth proportional to 86,909,579.70, 130,380,115.95 and 43,669,965.30 is: 65,512,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,579.70 : 130,380,115.95 = 43,669,965.30 : x
  2. Step 2: Convert to fraction form
    86,909,579.70/130,380,115.95 = 43,669,965.30/x
  3. Step 3: Cross multiply
    86,909,579.70x = 130,380,115.95 × 43,669,965.30
  4. Step 4: Simplify right side
    86,909,579.70x = 5,693,695,139,346,476
  5. Step 5: Solve for x
    x = 5,693,695,139,346,476/86,909,579.70
  6. Step 6: Final answer
    x = 65,512,860.14

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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.