Home / 129,290,443.97-178,424,604.56-70,556,901.26

Finding the Fourth Proportional to 129,290,443.97, 178,424,604.56 and 70,556,901.26

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Solution

The fourth proportional to 129,290,443.97, 178,424,604.56 and 70,556,901.26 is: 97,370,593.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,290,443.97 : 178,424,604.56 = 70,556,901.26 : x
  2. Step 2: Convert to fraction form
    129,290,443.97/178,424,604.56 = 70,556,901.26/x
  3. Step 3: Cross multiply
    129,290,443.97x = 178,424,604.56 × 70,556,901.26
  4. Step 4: Simplify right side
    129,290,443.97x = 12,589,087,205,941,682
  5. Step 5: Solve for x
    x = 12,589,087,205,941,682/129,290,443.97
  6. Step 6: Final answer
    x = 97,370,593.06

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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.