Home / 78,615,601.20-117,923,401.80-49,776,069.60

Finding the Fourth Proportional to 78,615,601.20, 117,923,401.80 and 49,776,069.60

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Solution

The fourth proportional to 78,615,601.20, 117,923,401.80 and 49,776,069.60 is: 74,664,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,615,601.20 : 117,923,401.80 = 49,776,069.60 : x
  2. Step 2: Convert to fraction form
    78,615,601.20/117,923,401.80 = 49,776,069.60/x
  3. Step 3: Cross multiply
    78,615,601.20x = 117,923,401.80 × 49,776,069.60
  4. Step 4: Simplify right side
    78,615,601.20x = 5,869,763,455,465,565
  5. Step 5: Solve for x
    x = 5,869,763,455,465,565/78,615,601.20
  6. Step 6: Final answer
    x = 74,664,104.40

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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.