Home / 312,074,917.65-430,500,109.65-192,959,433.11

Finding the Fourth Proportional to 312,074,917.65, 430,500,109.65 and 192,959,433.11

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Solution

The fourth proportional to 312,074,917.65, 430,500,109.65 and 192,959,433.11 is: 266,183,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,074,917.65 : 430,500,109.65 = 192,959,433.11 : x
  2. Step 2: Convert to fraction form
    312,074,917.65/430,500,109.65 = 192,959,433.11/x
  3. Step 3: Cross multiply
    312,074,917.65x = 430,500,109.65 × 192,959,433.11
  4. Step 4: Simplify right side
    312,074,917.65x = 83,069,057,109,704,336
  5. Step 5: Solve for x
    x = 83,069,057,109,704,336/312,074,917.65
  6. Step 6: Final answer
    x = 266,183,061.86

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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.