Home / 201,804,295,255.06-278,358,706,447.41-129,431,726,530.96

Finding the Fourth Proportional to 201,804,295,255.06, 278,358,706,447.41 and 129,431,726,530.96

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Solution

The fourth proportional to 201,804,295,255.06, 278,358,706,447.41 and 129,431,726,530.96 is: 178,531,621,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,804,295,255.06 : 278,358,706,447.41 = 129,431,726,530.96 : x
  2. Step 2: Convert to fraction form
    201,804,295,255.06/278,358,706,447.41 = 129,431,726,530.96/x
  3. Step 3: Cross multiply
    201,804,295,255.06x = 278,358,706,447.41 × 129,431,726,530.96
  4. Step 4: Simplify right side
    201,804,295,255.06x = 36,028,447,970,412,942,327,808
  5. Step 5: Solve for x
    x = 36,028,447,970,412,942,327,808/201,804,295,255.06
  6. Step 6: Final answer
    x = 178,531,621,068.21

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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.