Finding the Fourth Proportional to 18,110,966.45, 24,990,862.99 and 12,243,367.78
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Solution
The fourth proportional to 18,110,966.45, 24,990,862.99 and 12,243,367.78 is: 16,894,312.49
Step by Step Solution
- Step 1: Write the proportion equation
18,110,966.45 : 24,990,862.99 = 12,243,367.78 : x - Step 2: Convert to fraction form
18,110,966.45/24,990,862.99 = 12,243,367.78/x - Step 3: Cross multiply
18,110,966.45x = 24,990,862.99 × 12,243,367.78 - Step 4: Simplify right side
18,110,966.45x = 305,972,326,758,029.25 - Step 5: Solve for x
x = 305,972,326,758,029.25/18,110,966.45 - Step 6: Final answer
x = 16,894,312.49
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1.5x scale
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.