Finding the Fourth Proportional to 36,085,616.20, 54,128,424.30 and 28,432,865.80
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Solution
The fourth proportional to 36,085,616.20, 54,128,424.30 and 28,432,865.80 is: 42,649,298.70
Step by Step Solution
- Step 1: Write the proportion equation
36,085,616.20 : 54,128,424.30 = 28,432,865.80 : x - Step 2: Convert to fraction form
36,085,616.20/54,128,424.30 = 28,432,865.80/x - Step 3: Cross multiply
36,085,616.20x = 54,128,424.30 × 28,432,865.80 - Step 4: Simplify right side
36,085,616.20x = 1,539,026,224,087,359 - Step 5: Solve for x
x = 1,539,026,224,087,359/36,085,616.20 - Step 6: Final answer
x = 42,649,298.70
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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.