Home / 5,429,813.20-8,145,813.30-1,591,628.20

Finding the Fourth Proportional to 5,429,813.20, 8,145,813.30 and 1,591,628.20

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Solution

The fourth proportional to 5,429,813.20, 8,145,813.30 and 1,591,628.20 is: 2,387,762.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,813.20 : 8,145,813.30 = 1,591,628.20 : x
  2. Step 2: Convert to fraction form
    5,429,813.20/8,145,813.30 = 1,591,628.20/x
  3. Step 3: Cross multiply
    5,429,813.20x = 8,145,813.30 × 1,591,628.20
  4. Step 4: Simplify right side
    5,429,813.20x = 12,965,106,160,215.06
  5. Step 5: Solve for x
    x = 12,965,106,160,215.06/5,429,813.20
  6. Step 6: Final answer
    x = 2,387,762.84

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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.