Home / 12,108,619,472.69-18,172,199,700.20-5,480,903,007.43

Finding the Fourth Proportional to 12,108,619,472.69, 18,172,199,700.20 and 5,480,903,007.43

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Solution

The fourth proportional to 12,108,619,472.69, 18,172,199,700.20 and 5,480,903,007.43 is: 8,225,550,750.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108,619,472.69 : 18,172,199,700.20 = 5,480,903,007.43 : x
  2. Step 2: Convert to fraction form
    12,108,619,472.69/18,172,199,700.20 = 5,480,903,007.43/x
  3. Step 3: Cross multiply
    12,108,619,472.69x = 18,172,199,700.20 × 5,480,903,007.43
  4. Step 4: Simplify right side
    12,108,619,472.69x = 99,600,063,988,377,354,240
  5. Step 5: Solve for x
    x = 99,600,063,988,377,354,240/12,108,619,472.69
  6. Step 6: Final answer
    x = 8,225,550,750.27

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1.5x scale

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.