Finding the Fourth Proportional to 117,468,523.30, 176,202,784.95 and 87,235,435.30
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Solution
The fourth proportional to 117,468,523.30, 176,202,784.95 and 87,235,435.30 is: 130,853,152.95
Step by Step Solution
- Step 1: Write the proportion equation
117,468,523.30 : 176,202,784.95 = 87,235,435.30 : x - Step 2: Convert to fraction form
117,468,523.30/176,202,784.95 = 87,235,435.30/x - Step 3: Cross multiply
117,468,523.30x = 176,202,784.95 × 87,235,435.30 - Step 4: Simplify right side
117,468,523.30x = 15,371,126,646,185,538 - Step 5: Solve for x
x = 15,371,126,646,185,538/117,468,523.30 - Step 6: Final answer
x = 130,853,152.95
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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.