Finding the Fourth Proportional to 18,546,417.70, 25,564,493.96 and 14,619,774.62
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Solution
The fourth proportional to 18,546,417.70, 25,564,493.96 and 14,619,774.62 is: 20,151,985.47
Step by Step Solution
- Step 1: Write the proportion equation
18,546,417.70 : 25,564,493.96 = 14,619,774.62 : x - Step 2: Convert to fraction form
18,546,417.70/25,564,493.96 = 14,619,774.62/x - Step 3: Cross multiply
18,546,417.70x = 25,564,493.96 × 14,619,774.62 - Step 4: Simplify right side
18,546,417.70x = 373,747,139,969,551.31 - Step 5: Solve for x
x = 373,747,139,969,551.31/18,546,417.70 - Step 6: Final answer
x = 20,151,985.47
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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.