Finding the Fourth Proportional to 11,368,909.70, 15,689,135.49 and 6,212,271.25
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Solution
The fourth proportional to 11,368,909.70, 15,689,135.49 and 6,212,271.25 is: 8,572,956.24
Step by Step Solution
- Step 1: Write the proportion equation
11,368,909.70 : 15,689,135.49 = 6,212,271.25 : x - Step 2: Convert to fraction form
11,368,909.70/15,689,135.49 = 6,212,271.25/x - Step 3: Cross multiply
11,368,909.70x = 15,689,135.49 × 6,212,271.25 - Step 4: Simplify right side
11,368,909.70x = 97,465,165,263,435.98 - Step 5: Solve for x
x = 97,465,165,263,435.98/11,368,909.70 - Step 6: Final answer
x = 8,572,956.24
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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.