Finding the Fourth Proportional to 10,343,878.60, 15,522,816.30 and 4,661,177.80
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Solution
The fourth proportional to 10,343,878.60, 15,522,816.30 and 4,661,177.80 is: 6,994,920.33
Step by Step Solution
- Step 1: Write the proportion equation
10,343,878.60 : 15,522,816.30 = 4,661,177.80 : x - Step 2: Convert to fraction form
10,343,878.60/15,522,816.30 = 4,661,177.80/x - Step 3: Cross multiply
10,343,878.60x = 15,522,816.30 × 4,661,177.80 - Step 4: Simplify right side
10,343,878.60x = 72,354,606,731,038.14 - Step 5: Solve for x
x = 72,354,606,731,038.14/10,343,878.60 - Step 6: Final answer
x = 6,994,920.33
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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.