Home / 13,873,182.45-20,768,312.93-8,391,688.61

Finding the Fourth Proportional to 13,873,182.45, 20,768,312.93 and 8,391,688.61

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Solution

The fourth proportional to 13,873,182.45, 20,768,312.93 and 8,391,688.61 is: 12,562,453.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873,182.45 : 20,768,312.93 = 8,391,688.61 : x
  2. Step 2: Convert to fraction form
    13,873,182.45/20,768,312.93 = 8,391,688.61/x
  3. Step 3: Cross multiply
    13,873,182.45x = 20,768,312.93 × 8,391,688.61
  4. Step 4: Simplify right side
    13,873,182.45x = 174,281,215,136,496.75
  5. Step 5: Solve for x
    x = 174,281,215,136,496.75/13,873,182.45
  6. Step 6: Final answer
    x = 12,562,453.91

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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.