Home / 196,102,138.40-293,397,380.40-128,077,690.40

Finding the Fourth Proportional to 196,102,138.40, 293,397,380.40 and 128,077,690.40

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Solution

The fourth proportional to 196,102,138.40, 293,397,380.40 and 128,077,690.40 is: 191,622,891.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,102,138.40 : 293,397,380.40 = 128,077,690.40 : x
  2. Step 2: Convert to fraction form
    196,102,138.40/293,397,380.40 = 128,077,690.40/x
  3. Step 3: Cross multiply
    196,102,138.40x = 293,397,380.40 × 128,077,690.40
  4. Step 4: Simplify right side
    196,102,138.40x = 37,577,658,851,042,224
  5. Step 5: Solve for x
    x = 37,577,658,851,042,224/196,102,138.40
  6. Step 6: Final answer
    x = 191,622,891.81

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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.