Home / 300,303,721.80-450,455,582.70-127,786,163.40

Finding the Fourth Proportional to 300,303,721.80, 450,455,582.70 and 127,786,163.40

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Solution

The fourth proportional to 300,303,721.80, 450,455,582.70 and 127,786,163.40 is: 191,679,245.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,303,721.80 : 450,455,582.70 = 127,786,163.40 : x
  2. Step 2: Convert to fraction form
    300,303,721.80/450,455,582.70 = 127,786,163.40/x
  3. Step 3: Cross multiply
    300,303,721.80x = 450,455,582.70 × 127,786,163.40
  4. Step 4: Simplify right side
    300,303,721.80x = 57,561,990,695,344,416
  5. Step 5: Solve for x
    x = 57,561,990,695,344,416/300,303,721.80
  6. Step 6: Final answer
    x = 191,679,245.10

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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.