Home / 12,131,543.37-18,197,263.20-4,941,473.61

Finding the Fourth Proportional to 12,131,543.37, 18,197,263.20 and 4,941,473.61

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Solution

The fourth proportional to 12,131,543.37, 18,197,263.20 and 4,941,473.61 is: 7,412,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,543.37 : 18,197,263.20 = 4,941,473.61 : x
  2. Step 2: Convert to fraction form
    12,131,543.37/18,197,263.20 = 4,941,473.61/x
  3. Step 3: Cross multiply
    12,131,543.37x = 18,197,263.20 × 4,941,473.61
  4. Step 4: Simplify right side
    12,131,543.37x = 89,921,295,877,024.16
  5. Step 5: Solve for x
    x = 89,921,295,877,024.16/12,131,543.37
  6. Step 6: Final answer
    x = 7,412,189.29

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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.