Finding the Fourth Proportional to 72,910,657.80, 109,365,986.70 and 29,765,521.80
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Solution
The fourth proportional to 72,910,657.80, 109,365,986.70 and 29,765,521.80 is: 44,648,282.70
Step by Step Solution
- Step 1: Write the proportion equation
72,910,657.80 : 109,365,986.70 = 29,765,521.80 : x - Step 2: Convert to fraction form
72,910,657.80/109,365,986.70 = 29,765,521.80/x - Step 3: Cross multiply
72,910,657.80x = 109,365,986.70 × 29,765,521.80 - Step 4: Simplify right side
72,910,657.80x = 3,255,335,661,297,360 - Step 5: Solve for x
x = 3,255,335,661,297,360/72,910,657.80 - Step 6: Final answer
x = 44,648,282.70
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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.