Finding the Fourth Proportional to 1,192,416,410.93, 1,645,455,369.29 and 663,766,804.71
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Solution
The fourth proportional to 1,192,416,410.93, 1,645,455,369.29 and 663,766,804.71 is: 915,954,059.97
Step by Step Solution
- Step 1: Write the proportion equation
1,192,416,410.93 : 1,645,455,369.29 = 663,766,804.71 : x - Step 2: Convert to fraction form
1,192,416,410.93/1,645,455,369.29 = 663,766,804.71/x - Step 3: Cross multiply
1,192,416,410.93x = 1,645,455,369.29 × 663,766,804.71 - Step 4: Simplify right side
1,192,416,410.93x = 1,092,198,652,763,217,664 - Step 5: Solve for x
x = 1,092,198,652,763,217,664/1,192,416,410.93 - Step 6: Final answer
x = 915,954,059.97
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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.