Home / 525,487,064.49-787,987,975.01-193,410,661.41

Finding the Fourth Proportional to 525,487,064.49, 787,987,975.01 and 193,410,661.41

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Solution

The fourth proportional to 525,487,064.49, 787,987,975.01 and 193,410,661.41 is: 290,026,692.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,487,064.49 : 787,987,975.01 = 193,410,661.41 : x
  2. Step 2: Convert to fraction form
    525,487,064.49/787,987,975.01 = 193,410,661.41/x
  3. Step 3: Cross multiply
    525,487,064.49x = 787,987,975.01 × 193,410,661.41
  4. Step 4: Simplify right side
    525,487,064.49x = 152,405,275,428,843,584
  5. Step 5: Solve for x
    x = 152,405,275,428,843,584/525,487,064.49
  6. Step 6: Final answer
    x = 290,026,692.81

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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.