Home / 31,572,078,172.92-47,342,620,420.38-15,617,981,368.44

Finding the Fourth Proportional to 31,572,078,172.92, 47,342,620,420.38 and 15,617,981,368.44

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Solution

The fourth proportional to 31,572,078,172.92, 47,342,620,420.38 and 15,617,981,368.44 is: 23,419,306,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,572,078,172.92 : 47,342,620,420.38 = 15,617,981,368.44 : x
  2. Step 2: Convert to fraction form
    31,572,078,172.92/47,342,620,420.38 = 15,617,981,368.44/x
  3. Step 3: Cross multiply
    31,572,078,172.92x = 47,342,620,420.38 × 15,617,981,368.44
  4. Step 4: Simplify right side
    31,572,078,172.92x = 739,396,163,658,621,911,040
  5. Step 5: Solve for x
    x = 739,396,163,658,621,911,040/31,572,078,172.92
  6. Step 6: Final answer
    x = 23,419,306,122.61

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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.