Finding the Fourth Proportional to 77,057,905.62, 106,344,687.33 and 42,719,089.62
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Solution
The fourth proportional to 77,057,905.62, 106,344,687.33 and 42,719,089.62 is: 58,954,992.25
Step by Step Solution
- Step 1: Write the proportion equation
77,057,905.62 : 106,344,687.33 = 42,719,089.62 : x - Step 2: Convert to fraction form
77,057,905.62/106,344,687.33 = 42,719,089.62/x - Step 3: Cross multiply
77,057,905.62x = 106,344,687.33 × 42,719,089.62 - Step 4: Simplify right side
77,057,905.62x = 4,542,948,228,661,148 - Step 5: Solve for x
x = 4,542,948,228,661,148/77,057,905.62 - Step 6: Final answer
x = 58,954,992.25
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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.