Home / 685,150,888.72-1,027,561,777.44-316,331,479.84

Finding the Fourth Proportional to 685,150,888.72, 1,027,561,777.44 and 316,331,479.84

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Solution

The fourth proportional to 685,150,888.72, 1,027,561,777.44 and 316,331,479.84 is: 474,421,245.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,150,888.72 : 1,027,561,777.44 = 316,331,479.84 : x
  2. Step 2: Convert to fraction form
    685,150,888.72/1,027,561,777.44 = 316,331,479.84/x
  3. Step 3: Cross multiply
    685,150,888.72x = 1,027,561,777.44 × 316,331,479.84
  4. Step 4: Simplify right side
    685,150,888.72x = 325,050,137,684,615,936
  5. Step 5: Solve for x
    x = 325,050,137,684,615,936/685,150,888.72
  6. Step 6: Final answer
    x = 474,421,245.07

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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.