Home / 196,128,776.90-294,193,165.35-128,104,328.90

Finding the Fourth Proportional to 196,128,776.90, 294,193,165.35 and 128,104,328.90

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Solution

The fourth proportional to 196,128,776.90, 294,193,165.35 and 128,104,328.90 is: 192,156,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,128,776.90 : 294,193,165.35 = 128,104,328.90 : x
  2. Step 2: Convert to fraction form
    196,128,776.90/294,193,165.35 = 128,104,328.90/x
  3. Step 3: Cross multiply
    196,128,776.90x = 294,193,165.35 × 128,104,328.90
  4. Step 4: Simplify right side
    196,128,776.90x = 37,687,418,014,128,488
  5. Step 5: Solve for x
    x = 37,687,418,014,128,488/196,128,776.90
  6. Step 6: Final answer
    x = 192,156,493.35

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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.