Home / 140,273,518.80-193,583,434.23-78,393,855.54

Finding the Fourth Proportional to 140,273,518.80, 193,583,434.23 and 78,393,855.54

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Solution

The fourth proportional to 140,273,518.80, 193,583,434.23 and 78,393,855.54 is: 108,186,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,273,518.80 : 193,583,434.23 = 78,393,855.54 : x
  2. Step 2: Convert to fraction form
    140,273,518.80/193,583,434.23 = 78,393,855.54/x
  3. Step 3: Cross multiply
    140,273,518.80x = 193,583,434.23 × 78,393,855.54
  4. Step 4: Simplify right side
    140,273,518.80x = 15,175,751,777,963,712
  5. Step 5: Solve for x
    x = 15,175,751,777,963,712/140,273,518.80
  6. Step 6: Final answer
    x = 108,186,861.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.