Home / 12,336,989.77-18,507,201.10-5,146,869.82

Finding the Fourth Proportional to 12,336,989.77, 18,507,201.10 and 5,146,869.82

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Solution

The fourth proportional to 12,336,989.77, 18,507,201.10 and 5,146,869.82 is: 7,721,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,336,989.77 : 18,507,201.10 = 5,146,869.82 : x
  2. Step 2: Convert to fraction form
    12,336,989.77/18,507,201.10 = 5,146,869.82/x
  3. Step 3: Cross multiply
    12,336,989.77x = 18,507,201.10 × 5,146,869.82
  4. Step 4: Simplify right side
    12,336,989.77x = 95,254,154,794,260.81
  5. Step 5: Solve for x
    x = 95,254,154,794,260.81/12,336,989.77
  6. Step 6: Final answer
    x = 7,721,020.81

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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.