Home / 2,166,235.72-2,989,450.90-1,186,215.91

Finding the Fourth Proportional to 2,166,235.72, 2,989,450.90 and 1,186,215.91

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Solution

The fourth proportional to 2,166,235.72, 2,989,450.90 and 1,186,215.91 is: 1,637,002.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,235.72 : 2,989,450.90 = 1,186,215.91 : x
  2. Step 2: Convert to fraction form
    2,166,235.72/2,989,450.90 = 1,186,215.91/x
  3. Step 3: Cross multiply
    2,166,235.72x = 2,989,450.90 × 1,186,215.91
  4. Step 4: Simplify right side
    2,166,235.72x = 3,546,134,213,752.96
  5. Step 5: Solve for x
    x = 3,546,134,213,752.96/2,166,235.72
  6. Step 6: Final answer
    x = 1,637,002.93

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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.