Finding the Fourth Proportional to 3,721,981,159.07, 5,136,334,028.39 and 2,051,230,319.09
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Solution
The fourth proportional to 3,721,981,159.07, 5,136,334,028.39 and 2,051,230,319.09 is: 2,830,697,856.25
Step by Step Solution
- Step 1: Write the proportion equation
3,721,981,159.07 : 5,136,334,028.39 = 2,051,230,319.09 : x - Step 2: Convert to fraction form
3,721,981,159.07/5,136,334,028.39 = 2,051,230,319.09/x - Step 3: Cross multiply
3,721,981,159.07x = 5,136,334,028.39 × 2,051,230,319.09 - Step 4: Simplify right side
3,721,981,159.07x = 10,535,804,087,996,989,440 - Step 5: Solve for x
x = 10,535,804,087,996,989,440/3,721,981,159.07 - Step 6: Final answer
x = 2,830,697,856.25
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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.