Home / 77,375,904.42-106,778,747.43-42,567,847.86

Finding the Fourth Proportional to 77,375,904.42, 106,778,747.43 and 42,567,847.86

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Solution

The fourth proportional to 77,375,904.42, 106,778,747.43 and 42,567,847.86 is: 58,743,629.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,375,904.42 : 106,778,747.43 = 42,567,847.86 : x
  2. Step 2: Convert to fraction form
    77,375,904.42/106,778,747.43 = 42,567,847.86/x
  3. Step 3: Cross multiply
    77,375,904.42x = 106,778,747.43 × 42,567,847.86
  4. Step 4: Simplify right side
    77,375,904.42x = 4,545,341,475,281,606
  5. Step 5: Solve for x
    x = 4,545,341,475,281,606/77,375,904.42
  6. Step 6: Final answer
    x = 58,743,629.68

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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.