Home / 149,538,110.40-224,538,112.80-81,513,662.40

Finding the Fourth Proportional to 149,538,110.40, 224,538,112.80 and 81,513,662.40

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Solution

The fourth proportional to 149,538,110.40, 224,538,112.80 and 81,513,662.40 is: 122,396,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,538,110.40 : 224,538,112.80 = 81,513,662.40 : x
  2. Step 2: Convert to fraction form
    149,538,110.40/224,538,112.80 = 81,513,662.40/x
  3. Step 3: Cross multiply
    149,538,110.40x = 224,538,112.80 × 81,513,662.40
  4. Step 4: Simplify right side
    149,538,110.40x = 18,302,923,922,712,320
  5. Step 5: Solve for x
    x = 18,302,923,922,712,320/149,538,110.40
  6. Step 6: Final answer
    x = 122,396,383.60

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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.