Home / 872,987,907.69-1,204,543,472.54-501,638,194.53

Finding the Fourth Proportional to 872,987,907.69, 1,204,543,472.54 and 501,638,194.53

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Solution

The fourth proportional to 872,987,907.69, 1,204,543,472.54 and 501,638,194.53 is: 692,157,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,987,907.69 : 1,204,543,472.54 = 501,638,194.53 : x
  2. Step 2: Convert to fraction form
    872,987,907.69/1,204,543,472.54 = 501,638,194.53/x
  3. Step 3: Cross multiply
    872,987,907.69x = 1,204,543,472.54 × 501,638,194.53
  4. Step 4: Simplify right side
    872,987,907.69x = 604,245,012,795,354,112
  5. Step 5: Solve for x
    x = 604,245,012,795,354,112/872,987,907.69
  6. Step 6: Final answer
    x = 692,157,368.36

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Double scale
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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.