Finding the Fourth Proportional to 28,385,694.66, 39,172,274.26 and 15,332,953.70
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Solution
The fourth proportional to 28,385,694.66, 39,172,274.26 and 15,332,953.70 is: 21,159,484.55
Step by Step Solution
- Step 1: Write the proportion equation
28,385,694.66 : 39,172,274.26 = 15,332,953.70 : x - Step 2: Convert to fraction form
28,385,694.66/39,172,274.26 = 15,332,953.70/x - Step 3: Cross multiply
28,385,694.66x = 39,172,274.26 × 15,332,953.70 - Step 4: Simplify right side
28,385,694.66x = 600,626,667,552,281.75 - Step 5: Solve for x
x = 600,626,667,552,281.75/28,385,694.66 - Step 6: Final answer
x = 21,159,484.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.