Home / 196,129,213.40-294,193,820.10-128,104,765.40

Finding the Fourth Proportional to 196,129,213.40, 294,193,820.10 and 128,104,765.40

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Solution

The fourth proportional to 196,129,213.40, 294,193,820.10 and 128,104,765.40 is: 192,157,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,129,213.40 : 294,193,820.10 = 128,104,765.40 : x
  2. Step 2: Convert to fraction form
    196,129,213.40/294,193,820.10 = 128,104,765.40/x
  3. Step 3: Cross multiply
    196,129,213.40x = 294,193,820.10 × 128,104,765.40
  4. Step 4: Simplify right side
    196,129,213.40x = 37,687,630,306,040,312
  5. Step 5: Solve for x
    x = 37,687,630,306,040,312/196,129,213.40
  6. Step 6: Final answer
    x = 192,157,148.10

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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.