Home / 13,586,983,438.42-20,373,656,519.18-7,916,404,515.16

Finding the Fourth Proportional to 13,586,983,438.42, 20,373,656,519.18 and 7,916,404,515.16

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Solution

The fourth proportional to 13,586,983,438.42, 20,373,656,519.18 and 7,916,404,515.16 is: 11,870,633,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586,983,438.42 : 20,373,656,519.18 = 7,916,404,515.16 : x
  2. Step 2: Convert to fraction form
    13,586,983,438.42/20,373,656,519.18 = 7,916,404,515.16/x
  3. Step 3: Cross multiply
    13,586,983,438.42x = 20,373,656,519.18 × 7,916,404,515.16
  4. Step 4: Simplify right side
    13,586,983,438.42x = 161,286,106,458,755,530,752
  5. Step 5: Solve for x
    x = 161,286,106,458,755,530,752/13,586,983,438.42
  6. Step 6: Final answer
    x = 11,870,633,918.84

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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.