Finding the Fourth Proportional to 90,235,987.94, 124,525,821.33 and 48,982,908.26
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Solution
The fourth proportional to 90,235,987.94, 124,525,821.33 and 48,982,908.26 is: 67,596,499.15
Step by Step Solution
- Step 1: Write the proportion equation
90,235,987.94 : 124,525,821.33 = 48,982,908.26 : x - Step 2: Convert to fraction form
90,235,987.94/124,525,821.33 = 48,982,908.26/x - Step 3: Cross multiply
90,235,987.94x = 124,525,821.33 × 48,982,908.26 - Step 4: Simplify right side
90,235,987.94x = 6,099,636,882,208,541 - Step 5: Solve for x
x = 6,099,636,882,208,541/90,235,987.94 - Step 6: Final answer
x = 67,596,499.15
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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.