Home / 30,191,616,014.40-45,287,424,021.60-21,375,647,553.60

Finding the Fourth Proportional to 30,191,616,014.40, 45,287,424,021.60 and 21,375,647,553.60

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Solution

The fourth proportional to 30,191,616,014.40, 45,287,424,021.60 and 21,375,647,553.60 is: 32,063,471,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191,616,014.40 : 45,287,424,021.60 = 21,375,647,553.60 : x
  2. Step 2: Convert to fraction form
    30,191,616,014.40/45,287,424,021.60 = 21,375,647,553.60/x
  3. Step 3: Cross multiply
    30,191,616,014.40x = 45,287,424,021.60 × 21,375,647,553.60
  4. Step 4: Simplify right side
    30,191,616,014.40x = 968,048,014,496,159,760,384
  5. Step 5: Solve for x
    x = 968,048,014,496,159,760,384/30,191,616,014.40
  6. Step 6: Final answer
    x = 32,063,471,330.40

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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.