Home / 312,115,751.19-430,719,699.72-186,667,927.71

Finding the Fourth Proportional to 312,115,751.19, 430,719,699.72 and 186,667,927.71

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Solution

The fourth proportional to 312,115,751.19, 430,719,699.72 and 186,667,927.71 is: 257,601,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,115,751.19 : 430,719,699.72 = 186,667,927.71 : x
  2. Step 2: Convert to fraction form
    312,115,751.19/430,719,699.72 = 186,667,927.71/x
  3. Step 3: Cross multiply
    312,115,751.19x = 430,719,699.72 × 186,667,927.71
  4. Step 4: Simplify right side
    312,115,751.19x = 80,401,553,770,605,872
  5. Step 5: Solve for x
    x = 80,401,553,770,605,872/312,115,751.19
  6. Step 6: Final answer
    x = 257,601,718.16

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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.