Home / 20,405,098.08-28,156,953.39-12,563,366.28

Finding the Fourth Proportional to 20,405,098.08, 28,156,953.39 and 12,563,366.28

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Solution

The fourth proportional to 20,405,098.08, 28,156,953.39 and 12,563,366.28 is: 17,336,163.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,098.08 : 28,156,953.39 = 12,563,366.28 : x
  2. Step 2: Convert to fraction form
    20,405,098.08/28,156,953.39 = 12,563,366.28/x
  3. Step 3: Cross multiply
    20,405,098.08x = 28,156,953.39 × 12,563,366.28
  4. Step 4: Simplify right side
    20,405,098.08x = 353,746,118,767,457.69
  5. Step 5: Solve for x
    x = 353,746,118,767,457.69/20,405,098.08
  6. Step 6: Final answer
    x = 17,336,163.61

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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.