Finding the Fourth Proportional to 140,660,842.40, 194,118,884.88 and 84,905,376.56
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Solution
The fourth proportional to 140,660,842.40, 194,118,884.88 and 84,905,376.56 is: 117,173,598.12
Step by Step Solution
- Step 1: Write the proportion equation
140,660,842.40 : 194,118,884.88 = 84,905,376.56 : x - Step 2: Convert to fraction form
140,660,842.40/194,118,884.88 = 84,905,376.56/x - Step 3: Cross multiply
140,660,842.40x = 194,118,884.88 × 84,905,376.56 - Step 4: Simplify right side
140,660,842.40x = 16,481,737,018,143,690 - Step 5: Solve for x
x = 16,481,737,018,143,690/140,660,842.40 - Step 6: Final answer
x = 117,173,598.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.