Home / 78,384,672,043.20-117,577,008,064.80-70,303,367,620.80

Finding the Fourth Proportional to 78,384,672,043.20, 117,577,008,064.80 and 70,303,367,620.80

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Solution

The fourth proportional to 78,384,672,043.20, 117,577,008,064.80 and 70,303,367,620.80 is: 105,455,051,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,384,672,043.20 : 117,577,008,064.80 = 70,303,367,620.80 : x
  2. Step 2: Convert to fraction form
    78,384,672,043.20/117,577,008,064.80 = 70,303,367,620.80/x
  3. Step 3: Cross multiply
    78,384,672,043.20x = 117,577,008,064.80 × 70,303,367,620.80
  4. Step 4: Simplify right side
    78,384,672,043.20x = 8,266,059,621,733,401,362,432
  5. Step 5: Solve for x
    x = 8,266,059,621,733,401,362,432/78,384,672,043.20
  6. Step 6: Final answer
    x = 105,455,051,431.20

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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.