Finding the Fourth Proportional to 19,991,214.08, 29,986,819.68 and 4,845,145.76
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Solution
The fourth proportional to 19,991,214.08, 29,986,819.68 and 4,845,145.76 is: 7,267,718.29
Step by Step Solution
- Step 1: Write the proportion equation
19,991,214.08 : 29,986,819.68 = 4,845,145.76 : x - Step 2: Convert to fraction form
19,991,214.08/29,986,819.68 = 4,845,145.76/x - Step 3: Cross multiply
19,991,214.08x = 29,986,819.68 × 4,845,145.76 - Step 4: Simplify right side
19,991,214.08x = 145,290,512,228,436.56 - Step 5: Solve for x
x = 145,290,512,228,436.56/19,991,214.08 - Step 6: Final answer
x = 7,267,718.29
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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.