Finding the Fourth Proportional to 1,351,844,201.42, 1,864,950,737.47 and 815,696,813.96
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Solution
The fourth proportional to 1,351,844,201.42, 1,864,950,737.47 and 815,696,813.96 is: 1,125,303,029.11
Step by Step Solution
- Step 1: Write the proportion equation
1,351,844,201.42 : 1,864,950,737.47 = 815,696,813.96 : x - Step 2: Convert to fraction form
1,351,844,201.42/1,864,950,737.47 = 815,696,813.96/x - Step 3: Cross multiply
1,351,844,201.42x = 1,864,950,737.47 × 815,696,813.96 - Step 4: Simplify right side
1,351,844,201.42x = 1,521,234,374,735,267,328 - Step 5: Solve for x
x = 1,521,234,374,735,267,328/1,351,844,201.42 - Step 6: Final answer
x = 1,125,303,029.11
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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.