Home / 18,289,918,542.72-25,193,059,581.60-12,928,261,113.60

Finding the Fourth Proportional to 18,289,918,542.72, 25,193,059,581.60 and 12,928,261,113.60

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Solution

The fourth proportional to 18,289,918,542.72, 25,193,059,581.60 and 12,928,261,113.60 is: 17,807,758,507.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289,918,542.72 : 25,193,059,581.60 = 12,928,261,113.60 : x
  2. Step 2: Convert to fraction form
    18,289,918,542.72/25,193,059,581.60 = 12,928,261,113.60/x
  3. Step 3: Cross multiply
    18,289,918,542.72x = 25,193,059,581.60 × 12,928,261,113.60
  4. Step 4: Simplify right side
    18,289,918,542.72x = 325,702,452,521,407,152,128
  5. Step 5: Solve for x
    x = 325,702,452,521,407,152,128/18,289,918,542.72
  6. Step 6: Final answer
    x = 17,807,758,507.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.