Home / 1,485,282,971.76-2,049,745,817.28-890,664,265.68

Finding the Fourth Proportional to 1,485,282,971.76, 2,049,745,817.28 and 890,664,265.68

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Solution

The fourth proportional to 1,485,282,971.76, 2,049,745,817.28 and 890,664,265.68 is: 1,229,149,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,282,971.76 : 2,049,745,817.28 = 890,664,265.68 : x
  2. Step 2: Convert to fraction form
    1,485,282,971.76/2,049,745,817.28 = 890,664,265.68/x
  3. Step 3: Cross multiply
    1,485,282,971.76x = 2,049,745,817.28 × 890,664,265.68
  4. Step 4: Simplify right side
    1,485,282,971.76x = 1,825,635,353,178,342,400
  5. Step 5: Solve for x
    x = 1,825,635,353,178,342,400/1,485,282,971.76
  6. Step 6: Final answer
    x = 1,229,149,857.56

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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.