Home / 18,777,744,012.20-28,166,616,018.30-12,165,767,666.60

Finding the Fourth Proportional to 18,777,744,012.20, 28,166,616,018.30 and 12,165,767,666.60

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Solution

The fourth proportional to 18,777,744,012.20, 28,166,616,018.30 and 12,165,767,666.60 is: 18,248,651,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777,744,012.20 : 28,166,616,018.30 = 12,165,767,666.60 : x
  2. Step 2: Convert to fraction form
    18,777,744,012.20/28,166,616,018.30 = 12,165,767,666.60/x
  3. Step 3: Cross multiply
    18,777,744,012.20x = 28,166,616,018.30 × 12,165,767,666.60
  4. Step 4: Simplify right side
    18,777,744,012.20x = 342,668,506,432,971,800,576
  5. Step 5: Solve for x
    x = 342,668,506,432,971,800,576/18,777,744,012.20
  6. Step 6: Final answer
    x = 18,248,651,499.90

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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.