Home / 13,443,368.43-18,551,763.64-7,642,150.46

Finding the Fourth Proportional to 13,443,368.43, 18,551,763.64 and 7,642,150.46

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Solution

The fourth proportional to 13,443,368.43, 18,551,763.64 and 7,642,150.46 is: 10,546,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443,368.43 : 18,551,763.64 = 7,642,150.46 : x
  2. Step 2: Convert to fraction form
    13,443,368.43/18,551,763.64 = 7,642,150.46/x
  3. Step 3: Cross multiply
    13,443,368.43x = 18,551,763.64 × 7,642,150.46
  4. Step 4: Simplify right side
    13,443,368.43x = 141,775,369,035,237.28
  5. Step 5: Solve for x
    x = 141,775,369,035,237.28/13,443,368.43
  6. Step 6: Final answer
    x = 10,546,119.43

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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.