Finding the Fourth Proportional to 1,448,543,607.92, 1,999,038,462.69 and 813,575,995.70
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Solution
The fourth proportional to 1,448,543,607.92, 1,999,038,462.69 and 813,575,995.70 is: 1,122,761,992.69
Step by Step Solution
- Step 1: Write the proportion equation
1,448,543,607.92 : 1,999,038,462.69 = 813,575,995.70 : x - Step 2: Convert to fraction form
1,448,543,607.92/1,999,038,462.69 = 813,575,995.70/x - Step 3: Cross multiply
1,448,543,607.92x = 1,999,038,462.69 × 813,575,995.70 - Step 4: Simplify right side
1,448,543,607.92x = 1,626,369,707,718,629,376 - Step 5: Solve for x
x = 1,626,369,707,718,629,376/1,448,543,607.92 - Step 6: Final answer
x = 1,122,761,992.69
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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.