Finding the Fourth Proportional to 107,982,574.40, 161,988,069.60 and 39,873,108.80
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Solution
The fourth proportional to 107,982,574.40, 161,988,069.60 and 39,873,108.80 is: 59,814,909.58
Step by Step Solution
- Step 1: Write the proportion equation
107,982,574.40 : 161,988,069.60 = 39,873,108.80 : x - Step 2: Convert to fraction form
107,982,574.40/161,988,069.60 = 39,873,108.80/x - Step 3: Cross multiply
107,982,574.40x = 161,988,069.60 × 39,873,108.80 - Step 4: Simplify right side
107,982,574.40x = 6,458,967,923,462,772 - Step 5: Solve for x
x = 6,458,967,923,462,772/107,982,574.40 - Step 6: Final answer
x = 59,814,909.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.