Finding the Fourth Proportional to 28,213,730.84, 38,935,375.18 and 15,826,570.14
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Solution
The fourth proportional to 28,213,730.84, 38,935,375.18 and 15,826,570.14 is: 21,840,906.11
Step by Step Solution
- Step 1: Write the proportion equation
28,213,730.84 : 38,935,375.18 = 15,826,570.14 : x - Step 2: Convert to fraction form
28,213,730.84/38,935,375.18 = 15,826,570.14/x - Step 3: Cross multiply
28,213,730.84x = 38,935,375.18 × 15,826,570.14 - Step 4: Simplify right side
28,213,730.84x = 616,213,446,213,485.12 - Step 5: Solve for x
x = 616,213,446,213,485.12/28,213,730.84 - Step 6: Final answer
x = 21,840,906.11
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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.