Home / 13,443,368.42-18,551,763.65-7,642,150.45

Finding the Fourth Proportional to 13,443,368.42, 18,551,763.65 and 7,642,150.45

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Solution

The fourth proportional to 13,443,368.42, 18,551,763.65 and 7,642,150.45 is: 10,546,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443,368.42 : 18,551,763.65 = 7,642,150.45 : x
  2. Step 2: Convert to fraction form
    13,443,368.42/18,551,763.65 = 7,642,150.45/x
  3. Step 3: Cross multiply
    13,443,368.42x = 18,551,763.65 × 7,642,150.45
  4. Step 4: Simplify right side
    13,443,368.42x = 141,775,368,898,867.09
  5. Step 5: Solve for x
    x = 141,775,368,898,867.09/13,443,368.42
  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.