Home / 2,131,775,138.40-3,197,662,707.60-1,213,445,090.40

Finding the Fourth Proportional to 2,131,775,138.40, 3,197,662,707.60 and 1,213,445,090.40

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Solution

The fourth proportional to 2,131,775,138.40, 3,197,662,707.60 and 1,213,445,090.40 is: 1,820,167,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,775,138.40 : 3,197,662,707.60 = 1,213,445,090.40 : x
  2. Step 2: Convert to fraction form
    2,131,775,138.40/3,197,662,707.60 = 1,213,445,090.40/x
  3. Step 3: Cross multiply
    2,131,775,138.40x = 3,197,662,707.60 × 1,213,445,090.40
  4. Step 4: Simplify right side
    2,131,775,138.40x = 3,880,188,113,292,390,912
  5. Step 5: Solve for x
    x = 3,880,188,113,292,390,912/2,131,775,138.40
  6. Step 6: Final answer
    x = 1,820,167,635.60

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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.