Home / 2,186,872.90-3,017,885.88-1,220,003.19

Finding the Fourth Proportional to 2,186,872.90, 3,017,885.88 and 1,220,003.19

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Solution

The fourth proportional to 2,186,872.90, 3,017,885.88 and 1,220,003.19 is: 1,683,605.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,872.90 : 3,017,885.88 = 1,220,003.19 : x
  2. Step 2: Convert to fraction form
    2,186,872.90/3,017,885.88 = 1,220,003.19/x
  3. Step 3: Cross multiply
    2,186,872.90x = 3,017,885.88 × 1,220,003.19
  4. Step 4: Simplify right side
    2,186,872.90x = 3,681,830,405,230.97
  5. Step 5: Solve for x
    x = 3,681,830,405,230.97/2,186,872.90
  6. Step 6: Final answer
    x = 1,683,605.12

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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.