Home / 2,153,486.81-2,971,787.64-1,223,188.04

Finding the Fourth Proportional to 2,153,486.81, 2,971,787.64 and 1,223,188.04

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Solution

The fourth proportional to 2,153,486.81, 2,971,787.64 and 1,223,188.04 is: 1,687,985.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,486.81 : 2,971,787.64 = 1,223,188.04 : x
  2. Step 2: Convert to fraction form
    2,153,486.81/2,971,787.64 = 1,223,188.04/x
  3. Step 3: Cross multiply
    2,153,486.81x = 2,971,787.64 × 1,223,188.04
  4. Step 4: Simplify right side
    2,153,486.81x = 3,635,055,098,667.83
  5. Step 5: Solve for x
    x = 3,635,055,098,667.83/2,153,486.81
  6. Step 6: Final answer
    x = 1,687,985.77

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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.