Home / 13,582,865.89-18,743,987.25-7,703,578.36

Finding the Fourth Proportional to 13,582,865.89, 18,743,987.25 and 7,703,578.36

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Solution

The fourth proportional to 13,582,865.89, 18,743,987.25 and 7,703,578.36 is: 10,630,729.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582,865.89 : 18,743,987.25 = 7,703,578.36 : x
  2. Step 2: Convert to fraction form
    13,582,865.89/18,743,987.25 = 7,703,578.36/x
  3. Step 3: Cross multiply
    13,582,865.89x = 18,743,987.25 × 7,703,578.36
  4. Step 4: Simplify right side
    13,582,865.89x = 144,395,774,559,215.91
  5. Step 5: Solve for x
    x = 144,395,774,559,215.91/13,582,865.89
  6. Step 6: Final answer
    x = 10,630,729.61

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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.