Finding the Fourth Proportional to 288,255,040.20, 432,382,560.30 and 132,808,547.70
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Solution
The fourth proportional to 288,255,040.20, 432,382,560.30 and 132,808,547.70 is: 199,212,821.55
Step by Step Solution
- Step 1: Write the proportion equation
288,255,040.20 : 432,382,560.30 = 132,808,547.70 : x - Step 2: Convert to fraction form
288,255,040.20/432,382,560.30 = 132,808,547.70/x - Step 3: Cross multiply
288,255,040.20x = 432,382,560.30 × 132,808,547.70 - Step 4: Simplify right side
288,255,040.20x = 57,424,099,884,250,680 - Step 5: Solve for x
x = 57,424,099,884,250,680/288,255,040.20 - Step 6: Final answer
x = 199,212,821.55
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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.