Finding the Fourth Proportional to 1,174,379,555.36, 1,619,139,344.85 and 961,903,637.09
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Solution
The fourth proportional to 1,174,379,555.36, 1,619,139,344.85 and 961,903,637.09 is: 1,326,194,770.39
Step by Step Solution
- Step 1: Write the proportion equation
1,174,379,555.36 : 1,619,139,344.85 = 961,903,637.09 : x - Step 2: Convert to fraction form
1,174,379,555.36/1,619,139,344.85 = 961,903,637.09/x - Step 3: Cross multiply
1,174,379,555.36x = 1,619,139,344.85 × 961,903,637.09 - Step 4: Simplify right side
1,174,379,555.36x = 1,557,456,024,766,734,848 - Step 5: Solve for x
x = 1,557,456,024,766,734,848/1,174,379,555.36 - Step 6: Final answer
x = 1,326,194,770.39
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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.