Finding the Fourth Proportional to 77,241,553.80, 106,593,387.31 and 42,436,486.26
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Solution
The fourth proportional to 77,241,553.80, 106,593,387.31 and 42,436,486.26 is: 58,562,374.70
Step by Step Solution
- Step 1: Write the proportion equation
77,241,553.80 : 106,593,387.31 = 42,436,486.26 : x - Step 2: Convert to fraction form
77,241,553.80/106,593,387.31 = 42,436,486.26/x - Step 3: Cross multiply
77,241,553.80x = 106,593,387.31 × 42,436,486.26 - Step 4: Simplify right side
77,241,553.80x = 4,523,448,816,161,485 - Step 5: Solve for x
x = 4,523,448,816,161,485/77,241,553.80 - Step 6: Final answer
x = 58,562,374.70
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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.