Finding the Fourth Proportional to 7,970,921,982.81, 11,951,757,266.16 and 3,773,839,563.18
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Solution
The fourth proportional to 7,970,921,982.81, 11,951,757,266.16 and 3,773,839,563.18 is: 5,658,569,299.49
Step by Step Solution
- Step 1: Write the proportion equation
7,970,921,982.81 : 11,951,757,266.16 = 3,773,839,563.18 : x - Step 2: Convert to fraction form
7,970,921,982.81/11,951,757,266.16 = 3,773,839,563.18/x - Step 3: Cross multiply
7,970,921,982.81x = 11,951,757,266.16 × 3,773,839,563.18 - Step 4: Simplify right side
7,970,921,982.81x = 45,104,014,420,558,643,200 - Step 5: Solve for x
x = 45,104,014,420,558,643,200/7,970,921,982.81 - Step 6: Final answer
x = 5,658,569,299.49
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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.