Home / 196,437,263.40-294,537,209.04-78,280,198.61

Finding the Fourth Proportional to 196,437,263.40, 294,537,209.04 and 78,280,198.61

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Solution

The fourth proportional to 196,437,263.40, 294,537,209.04 and 78,280,198.61 is: 117,373,001.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,437,263.40 : 294,537,209.04 = 78,280,198.61 : x
  2. Step 2: Convert to fraction form
    196,437,263.40/294,537,209.04 = 78,280,198.61/x
  3. Step 3: Cross multiply
    196,437,263.40x = 294,537,209.04 × 78,280,198.61
  4. Step 4: Simplify right side
    196,437,263.40x = 23,056,431,220,213,604
  5. Step 5: Solve for x
    x = 23,056,431,220,213,604/196,437,263.40
  6. Step 6: Final answer
    x = 117,373,001.54

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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.