Home / 13,640,445.73-18,821,005.14-7,838,106.46

Finding the Fourth Proportional to 13,640,445.73, 18,821,005.14 and 7,838,106.46

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Solution

The fourth proportional to 13,640,445.73, 18,821,005.14 and 7,838,106.46 is: 10,814,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,445.73 : 18,821,005.14 = 7,838,106.46 : x
  2. Step 2: Convert to fraction form
    13,640,445.73/18,821,005.14 = 7,838,106.46/x
  3. Step 3: Cross multiply
    13,640,445.73x = 18,821,005.14 × 7,838,106.46
  4. Step 4: Simplify right side
    13,640,445.73x = 147,521,041,971,527.22
  5. Step 5: Solve for x
    x = 147,521,041,971,527.22/13,640,445.73
  6. Step 6: Final answer
    x = 10,814,972.24

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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.