Home / 119,065,719.80-178,598,579.70-82,786,014.20

Finding the Fourth Proportional to 119,065,719.80, 178,598,579.70 and 82,786,014.20

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Solution

The fourth proportional to 119,065,719.80, 178,598,579.70 and 82,786,014.20 is: 124,179,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,065,719.80 : 178,598,579.70 = 82,786,014.20 : x
  2. Step 2: Convert to fraction form
    119,065,719.80/178,598,579.70 = 82,786,014.20/x
  3. Step 3: Cross multiply
    119,065,719.80x = 178,598,579.70 × 82,786,014.20
  4. Step 4: Simplify right side
    119,065,719.80x = 14,785,464,555,144,032
  5. Step 5: Solve for x
    x = 14,785,464,555,144,032/119,065,719.80
  6. Step 6: Final answer
    x = 124,179,021.30

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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.