Home / 780,777,650.95-1,171,360,317.44-387,489,056.86

Finding the Fourth Proportional to 780,777,650.95, 1,171,360,317.44 and 387,489,056.86

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Solution

The fourth proportional to 780,777,650.95, 1,171,360,317.44 and 387,489,056.86 is: 581,329,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,777,650.95 : 1,171,360,317.44 = 387,489,056.86 : x
  2. Step 2: Convert to fraction form
    780,777,650.95/1,171,360,317.44 = 387,489,056.86/x
  3. Step 3: Cross multiply
    780,777,650.95x = 1,171,360,317.44 × 387,489,056.86
  4. Step 4: Simplify right side
    780,777,650.95x = 453,889,304,646,096,192
  5. Step 5: Solve for x
    x = 453,889,304,646,096,192/780,777,650.95
  6. Step 6: Final answer
    x = 581,329,785.88

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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.