Finding the Fourth Proportional to 42,497,881.20, 63,746,821.80 and 33,250,807.80
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Solution
The fourth proportional to 42,497,881.20, 63,746,821.80 and 33,250,807.80 is: 49,876,211.70
Step by Step Solution
- Step 1: Write the proportion equation
42,497,881.20 : 63,746,821.80 = 33,250,807.80 : x - Step 2: Convert to fraction form
42,497,881.20/63,746,821.80 = 33,250,807.80/x - Step 3: Cross multiply
42,497,881.20x = 63,746,821.80 × 33,250,807.80 - Step 4: Simplify right side
42,497,881.20x = 2,119,633,319,532,650 - Step 5: Solve for x
x = 2,119,633,319,532,650/42,497,881.20 - Step 6: Final answer
x = 49,876,211.70
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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.