Home / 2,900,504.72-4,001,579.88-2,138,370.32

Finding the Fourth Proportional to 2,900,504.72, 4,001,579.88 and 2,138,370.32

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Solution

The fourth proportional to 2,900,504.72, 4,001,579.88 and 2,138,370.32 is: 2,950,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900,504.72 : 4,001,579.88 = 2,138,370.32 : x
  2. Step 2: Convert to fraction form
    2,900,504.72/4,001,579.88 = 2,138,370.32/x
  3. Step 3: Cross multiply
    2,900,504.72x = 4,001,579.88 × 2,138,370.32
  4. Step 4: Simplify right side
    2,900,504.72x = 8,556,859,648,501.16
  5. Step 5: Solve for x
    x = 8,556,859,648,501.16/2,900,504.72
  6. Step 6: Final answer
    x = 2,950,127.81

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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.