Home / 86,909,599.45-130,380,145.58-43,669,985.05

Finding the Fourth Proportional to 86,909,599.45, 130,380,145.58 and 43,669,985.05

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Solution

The fourth proportional to 86,909,599.45, 130,380,145.58 and 43,669,985.05 is: 65,512,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,909,599.45 : 130,380,145.58 = 43,669,985.05 : x
  2. Step 2: Convert to fraction form
    86,909,599.45/130,380,145.58 = 43,669,985.05/x
  3. Step 3: Cross multiply
    86,909,599.45x = 130,380,145.58 × 43,669,985.05
  4. Step 4: Simplify right side
    86,909,599.45x = 5,693,699,008,077,073
  5. Step 5: Solve for x
    x = 5,693,699,008,077,073/86,909,599.45
  6. Step 6: Final answer
    x = 65,512,889.76

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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.