Home / 130,651,836.30-180,298,103.31-71,913,245.58

Finding the Fourth Proportional to 130,651,836.30, 180,298,103.31 and 71,913,245.58

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Solution

The fourth proportional to 130,651,836.30, 180,298,103.31 and 71,913,245.58 is: 99,239,491.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,651,836.30 : 180,298,103.31 = 71,913,245.58 : x
  2. Step 2: Convert to fraction form
    130,651,836.30/180,298,103.31 = 71,913,245.58/x
  3. Step 3: Cross multiply
    130,651,836.30x = 180,298,103.31 × 71,913,245.58
  4. Step 4: Simplify right side
    130,651,836.30x = 12,965,821,780,940,240
  5. Step 5: Solve for x
    x = 12,965,821,780,940,240/130,651,836.30
  6. Step 6: Final answer
    x = 99,239,491.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.