Finding the Fourth Proportional to 65,563,702.76, 90,475,539.81 and 36,194,405.95
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Solution
The fourth proportional to 65,563,702.76, 90,475,539.81 and 36,194,405.95 is: 49,946,971.85
Step by Step Solution
- Step 1: Write the proportion equation
65,563,702.76 : 90,475,539.81 = 36,194,405.95 : x - Step 2: Convert to fraction form
65,563,702.76/90,475,539.81 = 36,194,405.95/x - Step 3: Cross multiply
65,563,702.76x = 90,475,539.81 × 36,194,405.95 - Step 4: Simplify right side
65,563,702.76x = 3,274,708,416,428,526 - Step 5: Solve for x
x = 3,274,708,416,428,526/65,563,702.76 - Step 6: Final answer
x = 49,946,971.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.