Finding the Fourth Proportional to 21,026,586.24, 31,539,669.10 and 6,649,656.48
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Solution
The fourth proportional to 21,026,586.24, 31,539,669.10 and 6,649,656.48 is: 9,974,418.22
Step by Step Solution
- Step 1: Write the proportion equation
21,026,586.24 : 31,539,669.10 = 6,649,656.48 : x - Step 2: Convert to fraction form
21,026,586.24/31,539,669.10 = 6,649,656.48/x - Step 3: Cross multiply
21,026,586.24x = 31,539,669.10 × 6,649,656.48 - Step 4: Simplify right side
21,026,586.24x = 209,727,964,991,246.66 - Step 5: Solve for x
x = 209,727,964,991,246.66/21,026,586.24 - Step 6: Final answer
x = 9,974,418.22
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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.