Finding the Fourth Proportional to 7,974,981.60, 11,948,216.40 and 4,853,349.60
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Solution
The fourth proportional to 7,974,981.60, 11,948,216.40 and 4,853,349.60 is: 7,271,348.60
Step by Step Solution
- Step 1: Write the proportion equation
7,974,981.60 : 11,948,216.40 = 4,853,349.60 : x - Step 2: Convert to fraction form
7,974,981.60/11,948,216.40 = 4,853,349.60/x - Step 3: Cross multiply
7,974,981.60x = 11,948,216.40 × 4,853,349.60 - Step 4: Simplify right side
7,974,981.60x = 57,988,871,285,653.44 - Step 5: Solve for x
x = 57,988,871,285,653.44/7,974,981.60 - Step 6: Final answer
x = 7,271,348.60
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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.