Home / 207,679,286.61-286,685,661.32-129,401,514.90

Finding the Fourth Proportional to 207,679,286.61, 286,685,661.32 and 129,401,514.90

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Solution

The fourth proportional to 207,679,286.61, 286,685,661.32 and 129,401,514.90 is: 178,629,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,679,286.61 : 286,685,661.32 = 129,401,514.90 : x
  2. Step 2: Convert to fraction form
    207,679,286.61/286,685,661.32 = 129,401,514.90/x
  3. Step 3: Cross multiply
    207,679,286.61x = 286,685,661.32 × 129,401,514.90
  4. Step 4: Simplify right side
    207,679,286.61x = 37,097,558,874,269,328
  5. Step 5: Solve for x
    x = 37,097,558,874,269,328/207,679,286.61
  6. Step 6: Final answer
    x = 178,629,075.05

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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.