Finding the Fourth Proportional to 85,477,495.92, 128,217,228.84 and 30,894,226.80
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Solution
The fourth proportional to 85,477,495.92, 128,217,228.84 and 30,894,226.80 is: 46,341,696.20
Step by Step Solution
- Step 1: Write the proportion equation
85,477,495.92 : 128,217,228.84 = 30,894,226.80 : x - Step 2: Convert to fraction form
85,477,495.92/128,217,228.84 = 30,894,226.80/x - Step 3: Cross multiply
85,477,495.92x = 128,217,228.84 × 30,894,226.80 - Step 4: Simplify right side
85,477,495.92x = 3,961,172,147,450,461 - Step 5: Solve for x
x = 3,961,172,147,450,461/85,477,495.92 - Step 6: Final answer
x = 46,341,696.20
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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.