Home / 18,518,411.60-27,777,620.43-7,729,827.11

Finding the Fourth Proportional to 18,518,411.60, 27,777,620.43 and 7,729,827.11

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Solution

The fourth proportional to 18,518,411.60, 27,777,620.43 and 7,729,827.11 is: 11,594,741.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518,411.60 : 27,777,620.43 = 7,729,827.11 : x
  2. Step 2: Convert to fraction form
    18,518,411.60/27,777,620.43 = 7,729,827.11/x
  3. Step 3: Cross multiply
    18,518,411.60x = 27,777,620.43 × 7,729,827.11
  4. Step 4: Simplify right side
    18,518,411.60x = 214,716,203,312,215.75
  5. Step 5: Solve for x
    x = 214,716,203,312,215.75/18,518,411.60
  6. Step 6: Final answer
    x = 11,594,741.93

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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.