Home / 80,781,474,518.40-121,114,880,884.80-31,075,590,460.80

Finding the Fourth Proportional to 80,781,474,518.40, 121,114,880,884.80 and 31,075,590,460.80

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Solution

The fourth proportional to 80,781,474,518.40, 121,114,880,884.80 and 31,075,590,460.80 is: 46,591,331,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,781,474,518.40 : 121,114,880,884.80 = 31,075,590,460.80 : x
  2. Step 2: Convert to fraction form
    80,781,474,518.40/121,114,880,884.80 = 31,075,590,460.80/x
  3. Step 3: Cross multiply
    80,781,474,518.40x = 121,114,880,884.80 × 31,075,590,460.80
  4. Step 4: Simplify right side
    80,781,474,518.40x = 3,763,716,437,084,619,145,216
  5. Step 5: Solve for x
    x = 3,763,716,437,084,619,145,216/80,781,474,518.40
  6. Step 6: Final answer
    x = 46,591,331,236.81

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1.5x scale

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.