Home / 78,104,720.70-107,784,512.22-43,297,322.94

Finding the Fourth Proportional to 78,104,720.70, 107,784,512.22 and 43,297,322.94

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Solution

The fourth proportional to 78,104,720.70, 107,784,512.22 and 43,297,322.94 is: 59,750,304.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,104,720.70 : 107,784,512.22 = 43,297,322.94 : x
  2. Step 2: Convert to fraction form
    78,104,720.70/107,784,512.22 = 43,297,322.94/x
  3. Step 3: Cross multiply
    78,104,720.70x = 107,784,512.22 × 43,297,322.94
  4. Step 4: Simplify right side
    78,104,720.70x = 4,666,780,833,519,716
  5. Step 5: Solve for x
    x = 4,666,780,833,519,716/78,104,720.70
  6. Step 6: Final answer
    x = 59,750,304.36

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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.