Finding the Fourth Proportional to 3,640,956,381.50, 5,024,533,129.36 and 1,970,205,539.90
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Solution
The fourth proportional to 3,640,956,381.50, 5,024,533,129.36 and 1,970,205,539.90 is: 2,718,890,854.39
Step by Step Solution
- Step 1: Write the proportion equation
3,640,956,381.50 : 5,024,533,129.36 = 1,970,205,539.90 : x - Step 2: Convert to fraction form
3,640,956,381.50/5,024,533,129.36 = 1,970,205,539.90/x - Step 3: Cross multiply
3,640,956,381.50x = 5,024,533,129.36 × 1,970,205,539.90 - Step 4: Simplify right side
3,640,956,381.50x = 9,899,363,006,876,155,904 - Step 5: Solve for x
x = 9,899,363,006,876,155,904/3,640,956,381.50 - Step 6: Final answer
x = 2,718,890,854.39
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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.