Home / 391,566,823.92-586,821,140.64-149,097,458.16

Finding the Fourth Proportional to 391,566,823.92, 586,821,140.64 and 149,097,458.16

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Solution

The fourth proportional to 391,566,823.92, 586,821,140.64 and 149,097,458.16 is: 223,444,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,566,823.92 : 586,821,140.64 = 149,097,458.16 : x
  2. Step 2: Convert to fraction form
    391,566,823.92/586,821,140.64 = 149,097,458.16/x
  3. Step 3: Cross multiply
    391,566,823.92x = 586,821,140.64 × 149,097,458.16
  4. Step 4: Simplify right side
    391,566,823.92x = 87,493,540,463,975,872
  5. Step 5: Solve for x
    x = 87,493,540,463,975,872/391,566,823.92
  6. Step 6: Final answer
    x = 223,444,722.89

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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.