Finding the Fourth Proportional to 293,416,619.80, 440,124,929.70 and 140,361,611.80
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Solution
The fourth proportional to 293,416,619.80, 440,124,929.70 and 140,361,611.80 is: 210,542,417.70
Step by Step Solution
- Step 1: Write the proportion equation
293,416,619.80 : 440,124,929.70 = 140,361,611.80 : x - Step 2: Convert to fraction form
293,416,619.80/440,124,929.70 = 140,361,611.80/x - Step 3: Cross multiply
293,416,619.80x = 440,124,929.70 × 140,361,611.80 - Step 4: Simplify right side
293,416,619.80x = 61,776,644,526,053,696 - Step 5: Solve for x
x = 61,776,644,526,053,696/293,416,619.80 - Step 6: Final answer
x = 210,542,417.70
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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.