Finding the Fourth Proportional to 11,211,320.80, 16,806,483.60 and 8,781,126.40
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Solution
The fourth proportional to 11,211,320.80, 16,806,483.60 and 8,781,126.40 is: 13,163,467.49
Step by Step Solution
- Step 1: Write the proportion equation
11,211,320.80 : 16,806,483.60 = 8,781,126.40 : x - Step 2: Convert to fraction form
11,211,320.80/16,806,483.60 = 8,781,126.40/x - Step 3: Cross multiply
11,211,320.80x = 16,806,483.60 × 8,781,126.40 - Step 4: Simplify right side
11,211,320.80x = 147,579,856,831,127.06 - Step 5: Solve for x
x = 147,579,856,831,127.06/11,211,320.80 - Step 6: Final answer
x = 13,163,467.49
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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.