Home / 192,390,989.13-288,482,668.77-87,288,968.57

Finding the Fourth Proportional to 192,390,989.13, 288,482,668.77 and 87,288,968.57

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Solution

The fourth proportional to 192,390,989.13, 288,482,668.77 and 87,288,968.57 is: 130,886,351.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,390,989.13 : 288,482,668.77 = 87,288,968.57 : x
  2. Step 2: Convert to fraction form
    192,390,989.13/288,482,668.77 = 87,288,968.57/x
  3. Step 3: Cross multiply
    192,390,989.13x = 288,482,668.77 × 87,288,968.57
  4. Step 4: Simplify right side
    192,390,989.13x = 25,181,354,605,811,836
  5. Step 5: Solve for x
    x = 25,181,354,605,811,836/192,390,989.13
  6. Step 6: Final answer
    x = 130,886,351.38

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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.