Home / 301,197,870-451,987,927.20-128,675,981.52

Finding the Fourth Proportional to 301,197,870, 451,987,927.20 and 128,675,981.52

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Solution

The fourth proportional to 301,197,870, 451,987,927.20 and 128,675,981.52 is: 193,095,622.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,197,870 : 451,987,927.20 = 128,675,981.52 : x
  2. Step 2: Convert to fraction form
    301,197,870/451,987,927.20 = 128,675,981.52/x
  3. Step 3: Cross multiply
    301,197,870x = 451,987,927.20 × 128,675,981.52
  4. Step 4: Simplify right side
    301,197,870x = 58,159,990,167,650,304
  5. Step 5: Solve for x
    x = 58,159,990,167,650,304/301,197,870
  6. Step 6: Final answer
    x = 193,095,622.38

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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.