Home / 14,558,617.50-20,090,892.15-8,120,089.50

Finding the Fourth Proportional to 14,558,617.50, 20,090,892.15 and 8,120,089.50

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Solution

The fourth proportional to 14,558,617.50, 20,090,892.15 and 8,120,089.50 is: 11,205,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558,617.50 : 20,090,892.15 = 8,120,089.50 : x
  2. Step 2: Convert to fraction form
    14,558,617.50/20,090,892.15 = 8,120,089.50/x
  3. Step 3: Cross multiply
    14,558,617.50x = 20,090,892.15 × 8,120,089.50
  4. Step 4: Simplify right side
    14,558,617.50x = 163,139,842,392,847.41
  5. Step 5: Solve for x
    x = 163,139,842,392,847.41/14,558,617.50
  6. Step 6: Final answer
    x = 11,205,723.51

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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.