Finding the Fourth Proportional to 19,230,631.70, 28,845,947.55 and 5,767,459.70
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Solution
The fourth proportional to 19,230,631.70, 28,845,947.55 and 5,767,459.70 is: 8,651,189.55
Step by Step Solution
- Step 1: Write the proportion equation
19,230,631.70 : 28,845,947.55 = 5,767,459.70 : x - Step 2: Convert to fraction form
19,230,631.70/28,845,947.55 = 5,767,459.70/x - Step 3: Cross multiply
19,230,631.70x = 28,845,947.55 × 5,767,459.70 - Step 4: Simplify right side
19,230,631.70x = 166,367,840,002,938.75 - Step 5: Solve for x
x = 166,367,840,002,938.75/19,230,631.70 - Step 6: Final answer
x = 8,651,189.55
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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.