Home / 18,169,025.28-27,259,442.76-12,128,312.58

Finding the Fourth Proportional to 18,169,025.28, 27,259,442.76 and 12,128,312.58

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Solution

The fourth proportional to 18,169,025.28, 27,259,442.76 and 12,128,312.58 is: 18,196,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169,025.28 : 27,259,442.76 = 12,128,312.58 : x
  2. Step 2: Convert to fraction form
    18,169,025.28/27,259,442.76 = 12,128,312.58/x
  3. Step 3: Cross multiply
    18,169,025.28x = 27,259,442.76 × 12,128,312.58
  4. Step 4: Simplify right side
    18,169,025.28x = 330,611,042,549,897.94
  5. Step 5: Solve for x
    x = 330,611,042,549,897.94/18,169,025.28
  6. Step 6: Final answer
    x = 18,196,410.51

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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.