Finding the Fourth Proportional to 99,845,145.60, 149,767,718.40 and 84,539,644.80
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Solution
The fourth proportional to 99,845,145.60, 149,767,718.40 and 84,539,644.80 is: 126,809,467.20
Step by Step Solution
- Step 1: Write the proportion equation
99,845,145.60 : 149,767,718.40 = 84,539,644.80 : x - Step 2: Convert to fraction form
99,845,145.60/149,767,718.40 = 84,539,644.80/x - Step 3: Cross multiply
99,845,145.60x = 149,767,718.40 × 84,539,644.80 - Step 4: Simplify right side
99,845,145.60x = 12,661,309,716,042,424 - Step 5: Solve for x
x = 12,661,309,716,042,424/99,845,145.60 - Step 6: Final answer
x = 126,809,467.20
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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.