Home / 387,268,642.72-534,432,536.76-220,014,081.64

Finding the Fourth Proportional to 387,268,642.72, 534,432,536.76 and 220,014,081.64

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Solution

The fourth proportional to 387,268,642.72, 534,432,536.76 and 220,014,081.64 is: 303,620,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,268,642.72 : 534,432,536.76 = 220,014,081.64 : x
  2. Step 2: Convert to fraction form
    387,268,642.72/534,432,536.76 = 220,014,081.64/x
  3. Step 3: Cross multiply
    387,268,642.72x = 534,432,536.76 × 220,014,081.64
  4. Step 4: Simplify right side
    387,268,642.72x = 117,582,683,773,786,928
  5. Step 5: Solve for x
    x = 117,582,683,773,786,928/387,268,642.72
  6. Step 6: Final answer
    x = 303,620,460.85

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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.