Finding the Fourth Proportional to 85,636,454.79, 128,508,718.57 and 36,452,229.94
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Solution
The fourth proportional to 85,636,454.79, 128,508,718.57 and 36,452,229.94 is: 54,701,346.17
Step by Step Solution
- Step 1: Write the proportion equation
85,636,454.79 : 128,508,718.57 = 36,452,229.94 : x - Step 2: Convert to fraction form
85,636,454.79/128,508,718.57 = 36,452,229.94/x - Step 3: Cross multiply
85,636,454.79x = 128,508,718.57 × 36,452,229.94 - Step 4: Simplify right side
85,636,454.79x = 4,684,429,358,677,893 - Step 5: Solve for x
x = 4,684,429,358,677,893/85,636,454.79 - Step 6: Final answer
x = 54,701,346.17
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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.