Home / 13,921,715,964.60-19,212,432,091.90-7,819,143,946.92

Finding the Fourth Proportional to 13,921,715,964.60, 19,212,432,091.90 and 7,819,143,946.92

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Solution

The fourth proportional to 13,921,715,964.60, 19,212,432,091.90 and 7,819,143,946.92 is: 10,790,679,286.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,715,964.60 : 19,212,432,091.90 = 7,819,143,946.92 : x
  2. Step 2: Convert to fraction form
    13,921,715,964.60/19,212,432,091.90 = 7,819,143,946.92/x
  3. Step 3: Cross multiply
    13,921,715,964.60x = 19,212,432,091.90 × 7,819,143,946.92
  4. Step 4: Simplify right side
    13,921,715,964.60x = 150,224,772,096,991,461,376
  5. Step 5: Solve for x
    x = 150,224,772,096,991,461,376/13,921,715,964.60
  6. Step 6: Final answer
    x = 10,790,679,286.88

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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.