Home / 71,473,143.96-106,939,170.04-42,342,617.73

Finding the Fourth Proportional to 71,473,143.96, 106,939,170.04 and 42,342,617.73

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Solution

The fourth proportional to 71,473,143.96, 106,939,170.04 and 42,342,617.73 is: 63,353,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,473,143.96 : 106,939,170.04 = 42,342,617.73 : x
  2. Step 2: Convert to fraction form
    71,473,143.96/106,939,170.04 = 42,342,617.73/x
  3. Step 3: Cross multiply
    71,473,143.96x = 106,939,170.04 × 42,342,617.73
  4. Step 4: Simplify right side
    71,473,143.96x = 4,528,084,397,367,189
  5. Step 5: Solve for x
    x = 4,528,084,397,367,189/71,473,143.96
  6. Step 6: Final answer
    x = 63,353,647.91

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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.