Home / 18,956,217,245.09-26,146,983,688.59-12,190,589,328.16

Finding the Fourth Proportional to 18,956,217,245.09, 26,146,983,688.59 and 12,190,589,328.16

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Solution

The fourth proportional to 18,956,217,245.09, 26,146,983,688.59 and 12,190,589,328.16 is: 16,814,912,817.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956,217,245.09 : 26,146,983,688.59 = 12,190,589,328.16 : x
  2. Step 2: Convert to fraction form
    18,956,217,245.09/26,146,983,688.59 = 12,190,589,328.16/x
  3. Step 3: Cross multiply
    18,956,217,245.09x = 26,146,983,688.59 × 12,190,589,328.16
  4. Step 4: Simplify right side
    18,956,217,245.09x = 318,747,140,317,698,850,816
  5. Step 5: Solve for x
    x = 318,747,140,317,698,850,816/18,956,217,245.09
  6. Step 6: Final answer
    x = 16,814,912,817.07

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Double scale
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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.