Finding the Fourth Proportional to 99,530,797.09, 137,411,418.79 and 88,487,043.10
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Solution
The fourth proportional to 99,530,797.09, 137,411,418.79 and 88,487,043.10 is: 122,164,500.76
Step by Step Solution
- Step 1: Write the proportion equation
99,530,797.09 : 137,411,418.79 = 88,487,043.10 : x - Step 2: Convert to fraction form
99,530,797.09/137,411,418.79 = 88,487,043.10/x - Step 3: Cross multiply
99,530,797.09x = 137,411,418.79 × 88,487,043.10 - Step 4: Simplify right side
99,530,797.09x = 12,159,130,136,902,878 - Step 5: Solve for x
x = 12,159,130,136,902,878/99,530,797.09 - Step 6: Final answer
x = 122,164,500.76
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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.