Finding the Fourth Proportional to 15,232,942.99, 21,021,461.33 and 8,706,712.58
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Solution
The fourth proportional to 15,232,942.99, 21,021,461.33 and 8,706,712.58 is: 12,015,263.36
Step by Step Solution
- Step 1: Write the proportion equation
15,232,942.99 : 21,021,461.33 = 8,706,712.58 : x - Step 2: Convert to fraction form
15,232,942.99/21,021,461.33 = 8,706,712.58/x - Step 3: Cross multiply
15,232,942.99x = 21,021,461.33 × 8,706,712.58 - Step 4: Simplify right side
15,232,942.99x = 183,027,821,811,894.53 - Step 5: Solve for x
x = 183,027,821,811,894.53/15,232,942.99 - Step 6: Final answer
x = 12,015,263.36
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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.