Home / 12,520,898.80-18,781,348.20-12,352,937.20

Finding the Fourth Proportional to 12,520,898.80, 18,781,348.20 and 12,352,937.20

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Solution

The fourth proportional to 12,520,898.80, 18,781,348.20 and 12,352,937.20 is: 18,529,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520,898.80 : 18,781,348.20 = 12,352,937.20 : x
  2. Step 2: Convert to fraction form
    12,520,898.80/18,781,348.20 = 12,352,937.20/x
  3. Step 3: Cross multiply
    12,520,898.80x = 18,781,348.20 × 12,352,937.20
  4. Step 4: Simplify right side
    12,520,898.80x = 232,004,814,845,933.03
  5. Step 5: Solve for x
    x = 232,004,814,845,933.03/12,520,898.80
  6. Step 6: Final answer
    x = 18,529,405.80

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1.5x scale

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.