Home / 158,477,781.75-218,606,683.32-99,647,306.79

Finding the Fourth Proportional to 158,477,781.75, 218,606,683.32 and 99,647,306.79

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Solution

The fourth proportional to 158,477,781.75, 218,606,683.32 and 99,647,306.79 is: 137,455,023.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,477,781.75 : 218,606,683.32 = 99,647,306.79 : x
  2. Step 2: Convert to fraction form
    158,477,781.75/218,606,683.32 = 99,647,306.79/x
  3. Step 3: Cross multiply
    158,477,781.75x = 218,606,683.32 × 99,647,306.79
  4. Step 4: Simplify right side
    158,477,781.75x = 21,783,567,239,132,416
  5. Step 5: Solve for x
    x = 21,783,567,239,132,416/158,477,781.75
  6. Step 6: Final answer
    x = 137,455,023.65

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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.