Home / 424,412,923.12-636,582,917.76-258,373,336.48

Finding the Fourth Proportional to 424,412,923.12, 636,582,917.76 and 258,373,336.48

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Solution

The fourth proportional to 424,412,923.12, 636,582,917.76 and 258,373,336.48 is: 387,537,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,412,923.12 : 636,582,917.76 = 258,373,336.48 : x
  2. Step 2: Convert to fraction form
    424,412,923.12/636,582,917.76 = 258,373,336.48/x
  3. Step 3: Cross multiply
    424,412,923.12x = 636,582,917.76 × 258,373,336.48
  4. Step 4: Simplify right side
    424,412,923.12x = 164,476,052,407,824,640
  5. Step 5: Solve for x
    x = 164,476,052,407,824,640/424,412,923.12
  6. Step 6: Final answer
    x = 387,537,804.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.