Home / 129,360,262.14-193,944,733.40-78,230,914.02

Finding the Fourth Proportional to 129,360,262.14, 193,944,733.40 and 78,230,914.02

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Solution

The fourth proportional to 129,360,262.14, 193,944,733.40 and 78,230,914.02 is: 117,288,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,360,262.14 : 193,944,733.40 = 78,230,914.02 : x
  2. Step 2: Convert to fraction form
    129,360,262.14/193,944,733.40 = 78,230,914.02/x
  3. Step 3: Cross multiply
    129,360,262.14x = 193,944,733.40 × 78,230,914.02
  4. Step 4: Simplify right side
    129,360,262.14x = 15,172,473,763,247,222
  5. Step 5: Solve for x
    x = 15,172,473,763,247,222/129,360,262.14
  6. Step 6: Final answer
    x = 117,288,520.54

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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.