Home / 8,419,859.84-11,620,307.04-5,158,838.72

Finding the Fourth Proportional to 8,419,859.84, 11,620,307.04 and 5,158,838.72

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Solution

The fourth proportional to 8,419,859.84, 11,620,307.04 and 5,158,838.72 is: 7,119,749.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419,859.84 : 11,620,307.04 = 5,158,838.72 : x
  2. Step 2: Convert to fraction form
    8,419,859.84/11,620,307.04 = 5,158,838.72/x
  3. Step 3: Cross multiply
    8,419,859.84x = 11,620,307.04 × 5,158,838.72
  4. Step 4: Simplify right side
    8,419,859.84x = 59,947,289,896,240.58
  5. Step 5: Solve for x
    x = 59,947,289,896,240.58/8,419,859.84
  6. Step 6: Final answer
    x = 7,119,749.14

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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.