Home / 9,519,845.78-13,137,615.45-5,169,115.46

Finding the Fourth Proportional to 9,519,845.78, 13,137,615.45 and 5,169,115.46

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Solution

The fourth proportional to 9,519,845.78, 13,137,615.45 and 5,169,115.46 is: 7,133,503.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519,845.78 : 13,137,615.45 = 5,169,115.46 : x
  2. Step 2: Convert to fraction form
    9,519,845.78/13,137,615.45 = 5,169,115.46/x
  3. Step 3: Cross multiply
    9,519,845.78x = 13,137,615.45 × 5,169,115.46
  4. Step 4: Simplify right side
    9,519,845.78x = 67,909,851,064,441.77
  5. Step 5: Solve for x
    x = 67,909,851,064,441.77/9,519,845.78
  6. Step 6: Final answer
    x = 7,133,503.28

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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.