Home / 196,128,071.90-294,192,107.85-128,103,623.90

Finding the Fourth Proportional to 196,128,071.90, 294,192,107.85 and 128,103,623.90

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Solution

The fourth proportional to 196,128,071.90, 294,192,107.85 and 128,103,623.90 is: 192,155,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,128,071.90 : 294,192,107.85 = 128,103,623.90 : x
  2. Step 2: Convert to fraction form
    196,128,071.90/294,192,107.85 = 128,103,623.90/x
  3. Step 3: Cross multiply
    196,128,071.90x = 294,192,107.85 × 128,103,623.90
  4. Step 4: Simplify right side
    196,128,071.90x = 37,687,075,138,364,640
  5. Step 5: Solve for x
    x = 37,687,075,138,364,640/196,128,071.90
  6. Step 6: Final answer
    x = 192,155,435.85

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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.