Finding the Fourth Proportional to 112,623,996.93, 155,421,115.79 and 61,115,772.93
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Solution
The fourth proportional to 112,623,996.93, 155,421,115.79 and 61,115,772.93 is: 84,339,766.66
Step by Step Solution
- Step 1: Write the proportion equation
112,623,996.93 : 155,421,115.79 = 61,115,772.93 : x - Step 2: Convert to fraction form
112,623,996.93/155,421,115.79 = 61,115,772.93/x - Step 3: Cross multiply
112,623,996.93x = 155,421,115.79 × 61,115,772.93 - Step 4: Simplify right side
112,623,996.93x = 9,498,681,620,843,298 - Step 5: Solve for x
x = 9,498,681,620,843,298/112,623,996.93 - Step 6: Final answer
x = 84,339,766.66
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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.