Home / 2,116,138.20-3,174,207.30-1,577,261.40

Finding the Fourth Proportional to 2,116,138.20, 3,174,207.30 and 1,577,261.40

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Solution

The fourth proportional to 2,116,138.20, 3,174,207.30 and 1,577,261.40 is: 2,365,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,138.20 : 3,174,207.30 = 1,577,261.40 : x
  2. Step 2: Convert to fraction form
    2,116,138.20/3,174,207.30 = 1,577,261.40/x
  3. Step 3: Cross multiply
    2,116,138.20x = 3,174,207.30 × 1,577,261.40
  4. Step 4: Simplify right side
    2,116,138.20x = 5,006,554,649,888.22
  5. Step 5: Solve for x
    x = 5,006,554,649,888.22/2,116,138.20
  6. Step 6: Final answer
    x = 2,365,892.10

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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.