Finding the Fourth Proportional to 91,037,252.40, 136,555,878.60 and 82,746,772.80
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Solution
The fourth proportional to 91,037,252.40, 136,555,878.60 and 82,746,772.80 is: 124,120,159.20
Step by Step Solution
- Step 1: Write the proportion equation
91,037,252.40 : 136,555,878.60 = 82,746,772.80 : x - Step 2: Convert to fraction form
91,037,252.40/136,555,878.60 = 82,746,772.80/x - Step 3: Cross multiply
91,037,252.40x = 136,555,878.60 × 82,746,772.80 - Step 4: Simplify right side
91,037,252.40x = 11,299,558,261,018,582 - Step 5: Solve for x
x = 11,299,558,261,018,582/91,037,252.40 - Step 6: Final answer
x = 124,120,159.20
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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.