Finding the Fourth Proportional to 103,427,466.19, 142,704,527.83 and 68,141,358.43
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Solution
The fourth proportional to 103,427,466.19, 142,704,527.83 and 68,141,358.43 is: 94,018,356.42
Step by Step Solution
- Step 1: Write the proportion equation
103,427,466.19 : 142,704,527.83 = 68,141,358.43 : x - Step 2: Convert to fraction form
103,427,466.19/142,704,527.83 = 68,141,358.43/x - Step 3: Cross multiply
103,427,466.19x = 142,704,527.83 × 68,141,358.43 - Step 4: Simplify right side
103,427,466.19x = 9,724,080,379,920,824 - Step 5: Solve for x
x = 9,724,080,379,920,824/103,427,466.19 - Step 6: Final answer
x = 94,018,356.42
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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.