Finding the Fourth Proportional to 18,533,903.76, 27,804,869.46 and 7,604,118.54
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Solution
The fourth proportional to 18,533,903.76, 27,804,869.46 and 7,604,118.54 is: 11,407,824.61
Step by Step Solution
- Step 1: Write the proportion equation
18,533,903.76 : 27,804,869.46 = 7,604,118.54 : x - Step 2: Convert to fraction form
18,533,903.76/27,804,869.46 = 7,604,118.54/x - Step 3: Cross multiply
18,533,903.76x = 27,804,869.46 × 7,604,118.54 - Step 4: Simplify right side
18,533,903.76x = 211,431,523,363,065.78 - Step 5: Solve for x
x = 211,431,523,363,065.78/18,533,903.76 - Step 6: Final answer
x = 11,407,824.61
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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.