Home / 13,269,173.93-19,896,625.77-7,806,157.28

Finding the Fourth Proportional to 13,269,173.93, 19,896,625.77 and 7,806,157.28

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Solution

The fourth proportional to 13,269,173.93, 19,896,625.77 and 7,806,157.28 is: 11,705,038.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269,173.93 : 19,896,625.77 = 7,806,157.28 : x
  2. Step 2: Convert to fraction form
    13,269,173.93/19,896,625.77 = 7,806,157.28/x
  3. Step 3: Cross multiply
    13,269,173.93x = 19,896,625.77 × 7,806,157.28
  4. Step 4: Simplify right side
    13,269,173.93x = 155,316,190,101,921.09
  5. Step 5: Solve for x
    x = 155,316,190,101,921.09/13,269,173.93
  6. Step 6: Final answer
    x = 11,705,038.38

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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.