Home / 347,760,441.20-521,640,661.80-245,723,769.20

Finding the Fourth Proportional to 347,760,441.20, 521,640,661.80 and 245,723,769.20

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Solution

The fourth proportional to 347,760,441.20, 521,640,661.80 and 245,723,769.20 is: 368,585,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,760,441.20 : 521,640,661.80 = 245,723,769.20 : x
  2. Step 2: Convert to fraction form
    347,760,441.20/521,640,661.80 = 245,723,769.20/x
  3. Step 3: Cross multiply
    347,760,441.20x = 521,640,661.80 × 245,723,769.20
  4. Step 4: Simplify right side
    347,760,441.20x = 128,179,509,585,478,448
  5. Step 5: Solve for x
    x = 128,179,509,585,478,448/347,760,441.20
  6. Step 6: Final answer
    x = 368,585,653.80

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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.