Home / 140,273,498.94-193,583,406.84-78,393,835.68

Finding the Fourth Proportional to 140,273,498.94, 193,583,406.84 and 78,393,835.68

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Solution

The fourth proportional to 140,273,498.94, 193,583,406.84 and 78,393,835.68 is: 108,186,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,273,498.94 : 193,583,406.84 = 78,393,835.68 : x
  2. Step 2: Convert to fraction form
    140,273,498.94/193,583,406.84 = 78,393,835.68/x
  3. Step 3: Cross multiply
    140,273,498.94x = 193,583,406.84 × 78,393,835.68
  4. Step 4: Simplify right side
    140,273,498.94x = 15,175,745,786,189,550
  5. Step 5: Solve for x
    x = 15,175,745,786,189,550/140,273,498.94
  6. Step 6: Final answer
    x = 108,186,834.30

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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.