Home / 7,087,717.53-9,781,982.94-3,990,844.35

Finding the Fourth Proportional to 7,087,717.53, 9,781,982.94 and 3,990,844.35

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Solution

The fourth proportional to 7,087,717.53, 9,781,982.94 and 3,990,844.35 is: 5,507,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087,717.53 : 9,781,982.94 = 3,990,844.35 : x
  2. Step 2: Convert to fraction form
    7,087,717.53/9,781,982.94 = 3,990,844.35/x
  3. Step 3: Cross multiply
    7,087,717.53x = 9,781,982.94 × 3,990,844.35
  4. Step 4: Simplify right side
    7,087,717.53x = 39,038,371,347,895.39
  5. Step 5: Solve for x
    x = 39,038,371,347,895.39/7,087,717.53
  6. Step 6: Final answer
    x = 5,507,890.40

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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.