Home / 556,615,700.32-768,391,186.96-321,620,904.60

Finding the Fourth Proportional to 556,615,700.32, 768,391,186.96 and 321,620,904.60

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Solution

The fourth proportional to 556,615,700.32, 768,391,186.96 and 321,620,904.60 is: 443,987,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,615,700.32 : 768,391,186.96 = 321,620,904.60 : x
  2. Step 2: Convert to fraction form
    556,615,700.32/768,391,186.96 = 321,620,904.60/x
  3. Step 3: Cross multiply
    556,615,700.32x = 768,391,186.96 × 321,620,904.60
  4. Step 4: Simplify right side
    556,615,700.32x = 247,130,668,632,900,992
  5. Step 5: Solve for x
    x = 247,130,668,632,900,992/556,615,700.32
  6. Step 6: Final answer
    x = 443,987,958.83

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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.