Home / 1,243,986,476.89-1,865,986,690.50-414,937,844.13

Finding the Fourth Proportional to 1,243,986,476.89, 1,865,986,690.50 and 414,937,844.13

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Solution

The fourth proportional to 1,243,986,476.89, 1,865,986,690.50 and 414,937,844.13 is: 622,409,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,986,476.89 : 1,865,986,690.50 = 414,937,844.13 : x
  2. Step 2: Convert to fraction form
    1,243,986,476.89/1,865,986,690.50 = 414,937,844.13/x
  3. Step 3: Cross multiply
    1,243,986,476.89x = 1,865,986,690.50 × 414,937,844.13
  4. Step 4: Simplify right side
    1,243,986,476.89x = 774,268,494,534,832,896
  5. Step 5: Solve for x
    x = 774,268,494,534,832,896/1,243,986,476.89
  6. Step 6: Final answer
    x = 622,409,092.80

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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.