Home / 78,697,693.40-118,046,540.10-64,336,976.60

Finding the Fourth Proportional to 78,697,693.40, 118,046,540.10 and 64,336,976.60

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Solution

The fourth proportional to 78,697,693.40, 118,046,540.10 and 64,336,976.60 is: 96,505,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,697,693.40 : 118,046,540.10 = 64,336,976.60 : x
  2. Step 2: Convert to fraction form
    78,697,693.40/118,046,540.10 = 64,336,976.60/x
  3. Step 3: Cross multiply
    78,697,693.40x = 118,046,540.10 × 64,336,976.60
  4. Step 4: Simplify right side
    78,697,693.40x = 7,594,757,488,124,661
  5. Step 5: Solve for x
    x = 7,594,757,488,124,661/78,697,693.40
  6. Step 6: Final answer
    x = 96,505,464.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.