Finding the Fourth Proportional to 11,221,070.31, 16,831,605.51 and 8,666,012.05
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Solution
The fourth proportional to 11,221,070.31, 16,831,605.51 and 8,666,012.05 is: 12,999,018.11
Step by Step Solution
- Step 1: Write the proportion equation
11,221,070.31 : 16,831,605.51 = 8,666,012.05 : x - Step 2: Convert to fraction form
11,221,070.31/16,831,605.51 = 8,666,012.05/x - Step 3: Cross multiply
11,221,070.31x = 16,831,605.51 × 8,666,012.05 - Step 4: Simplify right side
11,221,070.31x = 145,862,896,170,506.44 - Step 5: Solve for x
x = 145,862,896,170,506.44/11,221,070.31 - Step 6: Final answer
x = 12,999,018.11
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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.