Home / 129,544,629.51-178,771,329.55-73,790,028.81

Finding the Fourth Proportional to 129,544,629.51, 178,771,329.55 and 73,790,028.81

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Solution

The fourth proportional to 129,544,629.51, 178,771,329.55 and 73,790,028.81 is: 101,830,092.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,544,629.51 : 178,771,329.55 = 73,790,028.81 : x
  2. Step 2: Convert to fraction form
    129,544,629.51/178,771,329.55 = 73,790,028.81/x
  3. Step 3: Cross multiply
    129,544,629.51x = 178,771,329.55 × 73,790,028.81
  4. Step 4: Simplify right side
    129,544,629.51x = 13,191,541,557,988,744
  5. Step 5: Solve for x
    x = 13,191,541,557,988,744/129,544,629.51
  6. Step 6: Final answer
    x = 101,830,092.13

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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.