Home / 19,855,129.20-29,782,693.80-12,296,857.20

Finding the Fourth Proportional to 19,855,129.20, 29,782,693.80 and 12,296,857.20

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Solution

The fourth proportional to 19,855,129.20, 29,782,693.80 and 12,296,857.20 is: 18,445,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855,129.20 : 29,782,693.80 = 12,296,857.20 : x
  2. Step 2: Convert to fraction form
    19,855,129.20/29,782,693.80 = 12,296,857.20/x
  3. Step 3: Cross multiply
    19,855,129.20x = 29,782,693.80 × 12,296,857.20
  4. Step 4: Simplify right side
    19,855,129.20x = 366,233,532,689,925.38
  5. Step 5: Solve for x
    x = 366,233,532,689,925.38/19,855,129.20
  6. Step 6: Final answer
    x = 18,445,285.80

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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.