Finding the Fourth Proportional to 917,552,260.20, 1,376,328,390.30 and 661,185,121.80
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Solution
The fourth proportional to 917,552,260.20, 1,376,328,390.30 and 661,185,121.80 is: 991,777,682.70
Step by Step Solution
- Step 1: Write the proportion equation
917,552,260.20 : 1,376,328,390.30 = 661,185,121.80 : x - Step 2: Convert to fraction form
917,552,260.20/1,376,328,390.30 = 661,185,121.80/x - Step 3: Cross multiply
917,552,260.20x = 1,376,328,390.30 × 661,185,121.80 - Step 4: Simplify right side
917,552,260.20x = 910,007,854,377,303,296 - Step 5: Solve for x
x = 910,007,854,377,303,296/917,552,260.20 - Step 6: Final answer
x = 991,777,682.70
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1.5x scale
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.