Finding the Fourth Proportional to 92,286,204.70, 138,429,307.05 and 77,281,635.10
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Solution
The fourth proportional to 92,286,204.70, 138,429,307.05 and 77,281,635.10 is: 115,922,452.65
Step by Step Solution
- Step 1: Write the proportion equation
92,286,204.70 : 138,429,307.05 = 77,281,635.10 : x - Step 2: Convert to fraction form
92,286,204.70/138,429,307.05 = 77,281,635.10/x - Step 3: Cross multiply
92,286,204.70x = 138,429,307.05 × 77,281,635.10 - Step 4: Simplify right side
92,286,204.70x = 10,698,043,194,583,958 - Step 5: Solve for x
x = 10,698,043,194,583,958/92,286,204.70 - Step 6: Final answer
x = 115,922,452.65
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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.