Finding the Fourth Proportional to 18,536,602.60, 27,804,903.90 and 12,797,039.80
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Solution
The fourth proportional to 18,536,602.60, 27,804,903.90 and 12,797,039.80 is: 19,195,559.70
Step by Step Solution
- Step 1: Write the proportion equation
18,536,602.60 : 27,804,903.90 = 12,797,039.80 : x - Step 2: Convert to fraction form
18,536,602.60/27,804,903.90 = 12,797,039.80/x - Step 3: Cross multiply
18,536,602.60x = 27,804,903.90 × 12,797,039.80 - Step 4: Simplify right side
18,536,602.60x = 355,820,461,843,475.25 - Step 5: Solve for x
x = 355,820,461,843,475.25/18,536,602.60 - Step 6: Final answer
x = 19,195,559.70
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1.5x scale
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.