Finding the Fourth Proportional to 85,473,612.40, 128,210,418.60 and 36,917,619.70
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Solution
The fourth proportional to 85,473,612.40, 128,210,418.60 and 36,917,619.70 is: 55,376,429.55
Step by Step Solution
- Step 1: Write the proportion equation
85,473,612.40 : 128,210,418.60 = 36,917,619.70 : x - Step 2: Convert to fraction form
85,473,612.40/128,210,418.60 = 36,917,619.70/x - Step 3: Cross multiply
85,473,612.40x = 128,210,418.60 × 36,917,619.70 - Step 4: Simplify right side
85,473,612.40x = 4,733,223,475,452,607 - Step 5: Solve for x
x = 4,733,223,475,452,607/85,473,612.40 - Step 6: Final answer
x = 55,376,429.55
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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.