Home / 21,889,689,157.28-30,206,961,758.40-11,864,968,770.80

Finding the Fourth Proportional to 21,889,689,157.28, 30,206,961,758.40 and 11,864,968,770.80

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Solution

The fourth proportional to 21,889,689,157.28, 30,206,961,758.40 and 11,864,968,770.80 is: 16,373,218,246.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,889,689,157.28 : 30,206,961,758.40 = 11,864,968,770.80 : x
  2. Step 2: Convert to fraction form
    21,889,689,157.28/30,206,961,758.40 = 11,864,968,770.80/x
  3. Step 3: Cross multiply
    21,889,689,157.28x = 30,206,961,758.40 × 11,864,968,770.80
  4. Step 4: Simplify right side
    21,889,689,157.28x = 358,404,657,924,165,861,376
  5. Step 5: Solve for x
    x = 358,404,657,924,165,861,376/21,889,689,157.28
  6. Step 6: Final answer
    x = 16,373,218,246.68

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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.