Home / 278,211,973,246.62-417,341,999,078.40-76,753,708,393.60

Finding the Fourth Proportional to 278,211,973,246.62, 417,341,999,078.40 and 76,753,708,393.60

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Solution

The fourth proportional to 278,211,973,246.62, 417,341,999,078.40 and 76,753,708,393.60 is: 115,137,194,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,211,973,246.62 : 417,341,999,078.40 = 76,753,708,393.60 : x
  2. Step 2: Convert to fraction form
    278,211,973,246.62/417,341,999,078.40 = 76,753,708,393.60/x
  3. Step 3: Cross multiply
    278,211,973,246.62x = 417,341,999,078.40 × 76,753,708,393.60
  4. Step 4: Simplify right side
    278,211,973,246.62x = 32,032,546,097,664,765,198,336
  5. Step 5: Solve for x
    x = 32,032,546,097,664,765,198,336/278,211,973,246.62
  6. Step 6: Final answer
    x = 115,137,194,578.14

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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.