Home / 84,499,848,027.15-126,749,772,040.73-78,114,619,841.55

Finding the Fourth Proportional to 84,499,848,027.15, 126,749,772,040.73 and 78,114,619,841.55

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Solution

The fourth proportional to 84,499,848,027.15, 126,749,772,040.73 and 78,114,619,841.55 is: 117,171,929,762.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,499,848,027.15 : 126,749,772,040.73 = 78,114,619,841.55 : x
  2. Step 2: Convert to fraction form
    84,499,848,027.15/126,749,772,040.73 = 78,114,619,841.55/x
  3. Step 3: Cross multiply
    84,499,848,027.15x = 126,749,772,040.73 × 78,114,619,841.55
  4. Step 4: Simplify right side
    84,499,848,027.15x = 9,901,010,257,964,747,980,800
  5. Step 5: Solve for x
    x = 9,901,010,257,964,747,980,800/84,499,848,027.15
  6. Step 6: Final answer
    x = 117,171,929,762.33

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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.