Home / 12,306,219,229.87-16,977,382,225.43-8,238,431,439.21

Finding the Fourth Proportional to 12,306,219,229.87, 16,977,382,225.43 and 8,238,431,439.21

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Solution

The fourth proportional to 12,306,219,229.87, 16,977,382,225.43 and 8,238,431,439.21 is: 11,365,554,023.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306,219,229.87 : 16,977,382,225.43 = 8,238,431,439.21 : x
  2. Step 2: Convert to fraction form
    12,306,219,229.87/16,977,382,225.43 = 8,238,431,439.21/x
  3. Step 3: Cross multiply
    12,306,219,229.87x = 16,977,382,225.43 × 8,238,431,439.21
  4. Step 4: Simplify right side
    12,306,219,229.87x = 139,866,999,481,489,178,624
  5. Step 5: Solve for x
    x = 139,866,999,481,489,178,624/12,306,219,229.87
  6. Step 6: Final answer
    x = 11,365,554,023.45

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Double scale
Find fourth proportional to 12,306,219,230.87, 16,977,382,226.80 and 8,238,431,440.21
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.