Home / 28,931,115.78-39,922,032.60-17,328,380.94

Finding the Fourth Proportional to 28,931,115.78, 39,922,032.60 and 17,328,380.94

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Solution

The fourth proportional to 28,931,115.78, 39,922,032.60 and 17,328,380.94 is: 23,911,424.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931,115.78 : 39,922,032.60 = 17,328,380.94 : x
  2. Step 2: Convert to fraction form
    28,931,115.78/39,922,032.60 = 17,328,380.94/x
  3. Step 3: Cross multiply
    28,931,115.78x = 39,922,032.60 × 17,328,380.94
  4. Step 4: Simplify right side
    28,931,115.78x = 691,784,188,791,898.75
  5. Step 5: Solve for x
    x = 691,784,188,791,898.75/28,931,115.78
  6. Step 6: Final answer
    x = 23,911,424.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.