Home / 388,126,704.97-580,421,736.73-289,827,441.01

Finding the Fourth Proportional to 388,126,704.97, 580,421,736.73 and 289,827,441.01

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Solution

The fourth proportional to 388,126,704.97, 580,421,736.73 and 289,827,441.01 is: 433,420,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,126,704.97 : 580,421,736.73 = 289,827,441.01 : x
  2. Step 2: Convert to fraction form
    388,126,704.97/580,421,736.73 = 289,827,441.01/x
  3. Step 3: Cross multiply
    388,126,704.97x = 580,421,736.73 × 289,827,441.01
  4. Step 4: Simplify right side
    388,126,704.97x = 168,222,146,663,035,840
  5. Step 5: Solve for x
    x = 168,222,146,663,035,840/388,126,704.97
  6. Step 6: Final answer
    x = 433,420,696.15

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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.