Finding the Fourth Proportional to 15,085,099, 20,817,037.74 and 8,209,433.44
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Solution
The fourth proportional to 15,085,099, 20,817,037.74 and 8,209,433.44 is: 11,328,801.07
Step by Step Solution
- Step 1: Write the proportion equation
15,085,099 : 20,817,037.74 = 8,209,433.44 : x - Step 2: Convert to fraction form
15,085,099/20,817,037.74 = 8,209,433.44/x - Step 3: Cross multiply
15,085,099x = 20,817,037.74 × 8,209,433.44 - Step 4: Simplify right side
15,085,099x = 170,896,085,744,498.03 - Step 5: Solve for x
x = 170,896,085,744,498.03/15,085,099 - Step 6: Final answer
x = 11,328,801.07
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1.5x scale
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.