Finding the Fourth Proportional to 28,213,732.84, 38,935,377.92 and 15,826,572.12
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Solution
The fourth proportional to 28,213,732.84, 38,935,377.92 and 15,826,572.12 is: 21,840,908.83
Step by Step Solution
- Step 1: Write the proportion equation
28,213,732.84 : 38,935,377.92 = 15,826,572.12 : x - Step 2: Convert to fraction form
28,213,732.84/38,935,377.92 = 15,826,572.12/x - Step 3: Cross multiply
28,213,732.84x = 38,935,377.92 × 15,826,572.12 - Step 4: Simplify right side
28,213,732.84x = 616,213,566,670,335.62 - Step 5: Solve for x
x = 616,213,566,670,335.62/28,213,732.84 - Step 6: Final answer
x = 21,840,908.83
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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.