Home / 2,187,000.10-3,270,002.55-1,620,129.70

Finding the Fourth Proportional to 2,187,000.10, 3,270,002.55 and 1,620,129.70

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Solution

The fourth proportional to 2,187,000.10, 3,270,002.55 and 1,620,129.70 is: 2,422,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,000.10 : 3,270,002.55 = 1,620,129.70 : x
  2. Step 2: Convert to fraction form
    2,187,000.10/3,270,002.55 = 1,620,129.70/x
  3. Step 3: Cross multiply
    2,187,000.10x = 3,270,002.55 × 1,620,129.70
  4. Step 4: Simplify right side
    2,187,000.10x = 5,297,828,250,330.73
  5. Step 5: Solve for x
    x = 5,297,828,250,330.73/2,187,000.10
  6. Step 6: Final answer
    x = 2,422,417.93

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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.