Home / 525,761,198.12-725,501,762.34-290,806,801.96

Finding the Fourth Proportional to 525,761,198.12, 725,501,762.34 and 290,806,801.96

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Solution

The fourth proportional to 525,761,198.12, 725,501,762.34 and 290,806,801.96 is: 401,286,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,761,198.12 : 725,501,762.34 = 290,806,801.96 : x
  2. Step 2: Convert to fraction form
    525,761,198.12/725,501,762.34 = 290,806,801.96/x
  3. Step 3: Cross multiply
    525,761,198.12x = 725,501,762.34 × 290,806,801.96
  4. Step 4: Simplify right side
    525,761,198.12x = 210,980,847,322,439,360
  5. Step 5: Solve for x
    x = 210,980,847,322,439,360/525,761,198.12
  6. Step 6: Final answer
    x = 401,286,454.91

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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.