Home / 209,443,065,067.28-289,032,312,490.44-117,992,713,183.76

Finding the Fourth Proportional to 209,443,065,067.28, 289,032,312,490.44 and 117,992,713,183.76

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Solution

The fourth proportional to 209,443,065,067.28, 289,032,312,490.44 and 117,992,713,183.76 is: 162,830,441,473.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,443,065,067.28 : 289,032,312,490.44 = 117,992,713,183.76 : x
  2. Step 2: Convert to fraction form
    209,443,065,067.28/289,032,312,490.44 = 117,992,713,183.76/x
  3. Step 3: Cross multiply
    209,443,065,067.28x = 289,032,312,490.44 × 117,992,713,183.76
  4. Step 4: Simplify right side
    209,443,065,067.28x = 34,103,706,748,523,378,638,848
  5. Step 5: Solve for x
    x = 34,103,706,748,523,378,638,848/209,443,065,067.28
  6. Step 6: Final answer
    x = 162,830,441,473.76

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1.5x scale

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.