Home / 140,036,640.60-210,054,960.90-99,142,255.65

Finding the Fourth Proportional to 140,036,640.60, 210,054,960.90 and 99,142,255.65

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Solution

The fourth proportional to 140,036,640.60, 210,054,960.90 and 99,142,255.65 is: 148,713,383.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,036,640.60 : 210,054,960.90 = 99,142,255.65 : x
  2. Step 2: Convert to fraction form
    140,036,640.60/210,054,960.90 = 99,142,255.65/x
  3. Step 3: Cross multiply
    140,036,640.60x = 210,054,960.90 × 99,142,255.65
  4. Step 4: Simplify right side
    140,036,640.60x = 20,825,322,634,098,556
  5. Step 5: Solve for x
    x = 20,825,322,634,098,556/140,036,640.60
  6. Step 6: Final answer
    x = 148,713,383.48

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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.