Finding the Fourth Proportional to 85,473,609.40, 128,210,414.10 and 36,917,616.70
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Solution
The fourth proportional to 85,473,609.40, 128,210,414.10 and 36,917,616.70 is: 55,376,425.05
Step by Step Solution
- Step 1: Write the proportion equation
85,473,609.40 : 128,210,414.10 = 36,917,616.70 : x - Step 2: Convert to fraction form
85,473,609.40/128,210,414.10 = 36,917,616.70/x - Step 3: Cross multiply
85,473,609.40x = 128,210,414.10 × 36,917,616.70 - Step 4: Simplify right side
85,473,609.40x = 4,733,222,924,692,076 - Step 5: Solve for x
x = 4,733,222,924,692,076/85,473,609.40 - Step 6: Final answer
x = 55,376,425.05
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1.5x scale
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.