Home / 13,443,365.43-18,551,759.51-7,642,147.46

Finding the Fourth Proportional to 13,443,365.43, 18,551,759.51 and 7,642,147.46

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Solution

The fourth proportional to 13,443,365.43, 18,551,759.51 and 7,642,147.46 is: 10,546,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443,365.43 : 18,551,759.51 = 7,642,147.46 : x
  2. Step 2: Convert to fraction form
    13,443,365.43/18,551,759.51 = 7,642,147.46/x
  3. Step 3: Cross multiply
    13,443,365.43x = 18,551,759.51 × 7,642,147.46
  4. Step 4: Simplify right side
    13,443,365.43x = 141,775,281,686,907.81
  5. Step 5: Solve for x
    x = 141,775,281,686,907.81/13,443,365.43
  6. Step 6: Final answer
    x = 10,546,115.29

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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.