Home / 1,227,657,379.20-1,694,147,359.68-670,728,439.68

Finding the Fourth Proportional to 1,227,657,379.20, 1,694,147,359.68 and 670,728,439.68

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Solution

The fourth proportional to 1,227,657,379.20, 1,694,147,359.68 and 670,728,439.68 is: 925,594,416.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,657,379.20 : 1,694,147,359.68 = 670,728,439.68 : x
  2. Step 2: Convert to fraction form
    1,227,657,379.20/1,694,147,359.68 = 670,728,439.68/x
  3. Step 3: Cross multiply
    1,227,657,379.20x = 1,694,147,359.68 × 670,728,439.68
  4. Step 4: Simplify right side
    1,227,657,379.20x = 1,136,312,815,146,158,080
  5. Step 5: Solve for x
    x = 1,136,312,815,146,158,080/1,227,657,379.20
  6. Step 6: Final answer
    x = 925,594,416.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.