Home / 80,993,070.60-121,494,993.09-28,464,389.06

Finding the Fourth Proportional to 80,993,070.60, 121,494,993.09 and 28,464,389.06

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Solution

The fourth proportional to 80,993,070.60, 121,494,993.09 and 28,464,389.06 is: 42,698,476.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,993,070.60 : 121,494,993.09 = 28,464,389.06 : x
  2. Step 2: Convert to fraction form
    80,993,070.60/121,494,993.09 = 28,464,389.06/x
  3. Step 3: Cross multiply
    80,993,070.60x = 121,494,993.09 × 28,464,389.06
  4. Step 4: Simplify right side
    80,993,070.60x = 3,458,280,752,155,771.50
  5. Step 5: Solve for x
    x = 3,458,280,752,155,771.50/80,993,070.60
  6. Step 6: Final answer
    x = 42,698,476.88

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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.