Home / 810,845,262.25-1,216,145,002.51-220,681,490.96

Finding the Fourth Proportional to 810,845,262.25, 1,216,145,002.51 and 220,681,490.96

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Solution

The fourth proportional to 810,845,262.25, 1,216,145,002.51 and 220,681,490.96 is: 330,988,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,845,262.25 : 1,216,145,002.51 = 220,681,490.96 : x
  2. Step 2: Convert to fraction form
    810,845,262.25/1,216,145,002.51 = 220,681,490.96/x
  3. Step 3: Cross multiply
    810,845,262.25x = 1,216,145,002.51 × 220,681,490.96
  4. Step 4: Simplify right side
    810,845,262.25x = 268,380,692,380,787,008
  5. Step 5: Solve for x
    x = 268,380,692,380,787,008/810,845,262.25
  6. Step 6: Final answer
    x = 330,988,790.19

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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.