Home / 20,371,820,693.76-30,555,980,628.48-12,401,920,535.04

Finding the Fourth Proportional to 20,371,820,693.76, 30,555,980,628.48 and 12,401,920,535.04

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Solution

The fourth proportional to 20,371,820,693.76, 30,555,980,628.48 and 12,401,920,535.04 is: 18,601,815,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371,820,693.76 : 30,555,980,628.48 = 12,401,920,535.04 : x
  2. Step 2: Convert to fraction form
    20,371,820,693.76/30,555,980,628.48 = 12,401,920,535.04/x
  3. Step 3: Cross multiply
    20,371,820,693.76x = 30,555,980,628.48 × 12,401,920,535.04
  4. Step 4: Simplify right side
    20,371,820,693.76x = 378,952,843,624,630,583,296
  5. Step 5: Solve for x
    x = 378,952,843,624,630,583,296/20,371,820,693.76
  6. Step 6: Final answer
    x = 18,601,815,189.78

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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.