Finding the Fourth Proportional to 11,312,340.66, 15,608,308.23 and 6,666,315.66
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Solution
The fourth proportional to 11,312,340.66, 15,608,308.23 and 6,666,315.66 is: 9,197,911.62
Step by Step Solution
- Step 1: Write the proportion equation
11,312,340.66 : 15,608,308.23 = 6,666,315.66 : x - Step 2: Convert to fraction form
11,312,340.66/15,608,308.23 = 6,666,315.66/x - Step 3: Cross multiply
11,312,340.66x = 15,608,308.23 × 6,666,315.66 - Step 4: Simplify right side
11,312,340.66x = 104,049,909,579,755.89 - Step 5: Solve for x
x = 104,049,909,579,755.89/11,312,340.66 - Step 6: Final answer
x = 9,197,911.62
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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.