Home / 8,112,843.40-12,168,472.14-2,129,211.40

Finding the Fourth Proportional to 8,112,843.40, 12,168,472.14 and 2,129,211.40

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Solution

The fourth proportional to 8,112,843.40, 12,168,472.14 and 2,129,211.40 is: 3,193,608.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112,843.40 : 12,168,472.14 = 2,129,211.40 : x
  2. Step 2: Convert to fraction form
    8,112,843.40/12,168,472.14 = 2,129,211.40/x
  3. Step 3: Cross multiply
    8,112,843.40x = 12,168,472.14 × 2,129,211.40
  4. Step 4: Simplify right side
    8,112,843.40x = 25,909,249,601,070.39
  5. Step 5: Solve for x
    x = 25,909,249,601,070.39/8,112,843.40
  6. Step 6: Final answer
    x = 3,193,608.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.