Finding the Fourth Proportional to 142,684,440.08, 196,905,535.08 and 77,494,344.08
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Solution
The fourth proportional to 142,684,440.08, 196,905,535.08 and 77,494,344.08 is: 106,942,742.17
Step by Step Solution
- Step 1: Write the proportion equation
142,684,440.08 : 196,905,535.08 = 77,494,344.08 : x - Step 2: Convert to fraction form
142,684,440.08/196,905,535.08 = 77,494,344.08/x - Step 3: Cross multiply
142,684,440.08x = 196,905,535.08 × 77,494,344.08 - Step 4: Simplify right side
142,684,440.08x = 15,259,065,286,746,030 - Step 5: Solve for x
x = 15,259,065,286,746,030/142,684,440.08 - Step 6: Final answer
x = 106,942,742.17
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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.