Home / 13,856,011.90-20,784,017.85-7,884,043.90

Finding the Fourth Proportional to 13,856,011.90, 20,784,017.85 and 7,884,043.90

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Solution

The fourth proportional to 13,856,011.90, 20,784,017.85 and 7,884,043.90 is: 11,826,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856,011.90 : 20,784,017.85 = 7,884,043.90 : x
  2. Step 2: Convert to fraction form
    13,856,011.90/20,784,017.85 = 7,884,043.90/x
  3. Step 3: Cross multiply
    13,856,011.90x = 20,784,017.85 × 7,884,043.90
  4. Step 4: Simplify right side
    13,856,011.90x = 163,862,109,147,783.62
  5. Step 5: Solve for x
    x = 163,862,109,147,783.62/13,856,011.90
  6. Step 6: Final answer
    x = 11,826,065.85

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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.