Home / 86,909,580.70-130,380,117.45-43,669,966.30

Finding the Fourth Proportional to 86,909,580.70, 130,380,117.45 and 43,669,966.30

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Solution

The fourth proportional to 86,909,580.70, 130,380,117.45 and 43,669,966.30 is: 65,512,861.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,580.70 : 130,380,117.45 = 43,669,966.30 : x
  2. Step 2: Convert to fraction form
    86,909,580.70/130,380,117.45 = 43,669,966.30/x
  3. Step 3: Cross multiply
    86,909,580.70x = 130,380,117.45 × 43,669,966.30
  4. Step 4: Simplify right side
    86,909,580.70x = 5,693,695,335,231,542
  5. Step 5: Solve for x
    x = 5,693,695,335,231,542/86,909,580.70
  6. Step 6: Final answer
    x = 65,512,861.64

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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.