Finding the Fourth Proportional to 817,824,980.49, 1,227,120,550.92 and 403,075,707.09
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Solution
The fourth proportional to 817,824,980.49, 1,227,120,550.92 and 403,075,707.09 is: 604,802,366.70
Step by Step Solution
- Step 1: Write the proportion equation
817,824,980.49 : 1,227,120,550.92 = 403,075,707.09 : x - Step 2: Convert to fraction form
817,824,980.49/1,227,120,550.92 = 403,075,707.09/x - Step 3: Cross multiply
817,824,980.49x = 1,227,120,550.92 × 403,075,707.09 - Step 4: Simplify right side
817,824,980.49x = 494,622,483,746,749,376 - Step 5: Solve for x
x = 494,622,483,746,749,376/817,824,980.49 - Step 6: Final answer
x = 604,802,366.70
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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.