Home / 18,380,014.80-27,578,879.55-12,977,031.30

Finding the Fourth Proportional to 18,380,014.80, 27,578,879.55 and 12,977,031.30

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Solution

The fourth proportional to 18,380,014.80, 27,578,879.55 and 12,977,031.30 is: 19,471,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380,014.80 : 27,578,879.55 = 12,977,031.30 : x
  2. Step 2: Convert to fraction form
    18,380,014.80/27,578,879.55 = 12,977,031.30/x
  3. Step 3: Cross multiply
    18,380,014.80x = 27,578,879.55 × 12,977,031.30
  4. Step 4: Simplify right side
    18,380,014.80x = 357,891,983,139,279.94
  5. Step 5: Solve for x
    x = 357,891,983,139,279.94/18,380,014.80
  6. Step 6: Final answer
    x = 19,471,800.60

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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.