Home / 13,443,374.74-18,551,772.21-7,642,156.78

Finding the Fourth Proportional to 13,443,374.74, 18,551,772.21 and 7,642,156.78

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Solution

The fourth proportional to 13,443,374.74, 18,551,772.21 and 7,642,156.78 is: 10,546,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443,374.74 : 18,551,772.21 = 7,642,156.78 : x
  2. Step 2: Convert to fraction form
    13,443,374.74/18,551,772.21 = 7,642,156.78/x
  3. Step 3: Cross multiply
    13,443,374.74x = 18,551,772.21 × 7,642,156.78
  4. Step 4: Simplify right side
    13,443,374.74x = 141,775,551,775,667.09
  5. Step 5: Solve for x
    x = 141,775,551,775,667.09/13,443,374.74
  6. Step 6: Final answer
    x = 10,546,128.08

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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.