Finding the Fourth Proportional to 1,166,921,418.14, 1,610,356,408.80 and 631,073,083.09
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Solution
The fourth proportional to 1,166,921,418.14, 1,610,356,408.80 and 631,073,083.09 is: 870,883,478.51
Step by Step Solution
- Step 1: Write the proportion equation
1,166,921,418.14 : 1,610,356,408.80 = 631,073,083.09 : x - Step 2: Convert to fraction form
1,166,921,418.14/1,610,356,408.80 = 631,073,083.09/x - Step 3: Cross multiply
1,166,921,418.14x = 1,610,356,408.80 × 631,073,083.09 - Step 4: Simplify right side
1,166,921,418.14x = 1,016,252,583,775,156,480 - Step 5: Solve for x
x = 1,016,252,583,775,156,480/1,166,921,418.14 - Step 6: Final answer
x = 870,883,478.51
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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.