Home / 9,838,403.37-13,577,043.83-5,428,128.80

Finding the Fourth Proportional to 9,838,403.37, 13,577,043.83 and 5,428,128.80

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Solution

The fourth proportional to 9,838,403.37, 13,577,043.83 and 5,428,128.80 is: 7,490,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,838,403.37 : 13,577,043.83 = 5,428,128.80 : x
  2. Step 2: Convert to fraction form
    9,838,403.37/13,577,043.83 = 5,428,128.80/x
  3. Step 3: Cross multiply
    9,838,403.37x = 13,577,043.83 × 5,428,128.80
  4. Step 4: Simplify right side
    9,838,403.37x = 73,697,942,537,459.44
  5. Step 5: Solve for x
    x = 73,697,942,537,459.44/9,838,403.37
  6. Step 6: Final answer
    x = 7,490,843.76

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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.