Finding the Fourth Proportional to 1,293,607,243.68, 1,940,410,643.92 and 408,913,646
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Solution
The fourth proportional to 1,293,607,243.68, 1,940,410,643.92 and 408,913,646 is: 613,370,398.95
Step by Step Solution
- Step 1: Write the proportion equation
1,293,607,243.68 : 1,940,410,643.92 = 408,913,646 : x - Step 2: Convert to fraction form
1,293,607,243.68/1,940,410,643.92 = 408,913,646/x - Step 3: Cross multiply
1,293,607,243.68x = 1,940,410,643.92 × 408,913,646 - Step 4: Simplify right side
1,293,607,243.68x = 793,460,391,142,534,912 - Step 5: Solve for x
x = 793,460,391,142,534,912/1,293,607,243.68 - Step 6: Final answer
x = 613,370,398.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.