Home / 685,152,277.61-945,511,099.67-371,886,556.37

Finding the Fourth Proportional to 685,152,277.61, 945,511,099.67 and 371,886,556.37

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Solution

The fourth proportional to 685,152,277.61, 945,511,099.67 and 371,886,556.37 is: 513,203,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,152,277.61 : 945,511,099.67 = 371,886,556.37 : x
  2. Step 2: Convert to fraction form
    685,152,277.61/945,511,099.67 = 371,886,556.37/x
  3. Step 3: Cross multiply
    685,152,277.61x = 945,511,099.67 × 371,886,556.37
  4. Step 4: Simplify right side
    685,152,277.61x = 351,622,866,862,090,304
  5. Step 5: Solve for x
    x = 351,622,866,862,090,304/685,152,277.61
  6. Step 6: Final answer
    x = 513,203,966.99

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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.