Home / 149,243,729,867.82-205,956,332,006.40-81,578,590,308.90

Finding the Fourth Proportional to 149,243,729,867.82, 205,956,332,006.40 and 81,578,590,308.90

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Solution

The fourth proportional to 149,243,729,867.82, 205,956,332,006.40 and 81,578,590,308.90 is: 112,578,446,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,243,729,867.82 : 205,956,332,006.40 = 81,578,590,308.90 : x
  2. Step 2: Convert to fraction form
    149,243,729,867.82/205,956,332,006.40 = 81,578,590,308.90/x
  3. Step 3: Cross multiply
    149,243,729,867.82x = 205,956,332,006.40 × 81,578,590,308.90
  4. Step 4: Simplify right side
    149,243,729,867.82x = 16,801,627,230,273,892,515,840
  5. Step 5: Solve for x
    x = 16,801,627,230,273,892,515,840/149,243,729,867.82
  6. Step 6: Final answer
    x = 112,578,446,311.64

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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.