Finding the Fourth Proportional to 71,636,403.30, 98,858,569.41 and 40,698,269.70
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Solution
The fourth proportional to 71,636,403.30, 98,858,569.41 and 40,698,269.70 is: 56,163,801.29
Step by Step Solution
- Step 1: Write the proportion equation
71,636,403.30 : 98,858,569.41 = 40,698,269.70 : x - Step 2: Convert to fraction form
71,636,403.30/98,858,569.41 = 40,698,269.70/x - Step 3: Cross multiply
71,636,403.30x = 98,858,569.41 × 40,698,269.70 - Step 4: Simplify right side
71,636,403.30x = 4,023,372,720,004,350 - Step 5: Solve for x
x = 4,023,372,720,004,350/71,636,403.30 - Step 6: Final answer
x = 56,163,801.29
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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.