Home / 118,789,243.80-163,952,137.44-77,464,391.64

Finding the Fourth Proportional to 118,789,243.80, 163,952,137.44 and 77,464,391.64

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Solution

The fourth proportional to 118,789,243.80, 163,952,137.44 and 77,464,391.64 is: 106,915,846.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,789,243.80 : 163,952,137.44 = 77,464,391.64 : x
  2. Step 2: Convert to fraction form
    118,789,243.80/163,952,137.44 = 77,464,391.64/x
  3. Step 3: Cross multiply
    118,789,243.80x = 163,952,137.44 × 77,464,391.64
  4. Step 4: Simplify right side
    118,789,243.80x = 12,700,452,584,867,266
  5. Step 5: Solve for x
    x = 12,700,452,584,867,266/118,789,243.80
  6. Step 6: Final answer
    x = 106,915,846.74

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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.