Home / 20,411,491,029.58-30,628,213,495.13-19,668,544,981.42

Finding the Fourth Proportional to 20,411,491,029.58, 30,628,213,495.13 and 19,668,544,981.42

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Solution

The fourth proportional to 20,411,491,029.58, 30,628,213,495.13 and 19,668,544,981.42 is: 29,513,394,879.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411,491,029.58 : 30,628,213,495.13 = 19,668,544,981.42 : x
  2. Step 2: Convert to fraction form
    20,411,491,029.58/30,628,213,495.13 = 19,668,544,981.42/x
  3. Step 3: Cross multiply
    20,411,491,029.58x = 30,628,213,495.13 × 19,668,544,981.42
  4. Step 4: Simplify right side
    20,411,491,029.58x = 602,412,394,829,370,490,880
  5. Step 5: Solve for x
    x = 602,412,394,829,370,490,880/20,411,491,029.58
  6. Step 6: Final answer
    x = 29,513,394,879.21

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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.