Home / 103,077,989.28-142,247,716.56-56,669,032.80

Finding the Fourth Proportional to 103,077,989.28, 142,247,716.56 and 56,669,032.80

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Solution

The fourth proportional to 103,077,989.28, 142,247,716.56 and 56,669,032.80 is: 78,203,315.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,077,989.28 : 142,247,716.56 = 56,669,032.80 : x
  2. Step 2: Convert to fraction form
    103,077,989.28/142,247,716.56 = 56,669,032.80/x
  3. Step 3: Cross multiply
    103,077,989.28x = 142,247,716.56 × 56,669,032.80
  4. Step 4: Simplify right side
    103,077,989.28x = 8,061,040,515,463,743
  5. Step 5: Solve for x
    x = 8,061,040,515,463,743/103,077,989.28
  6. Step 6: Final answer
    x = 78,203,315.49

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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.