Finding the Fourth Proportional to 12,113,657.60, 18,186,232.80 and 9,720,204.80
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Solution
The fourth proportional to 12,113,657.60, 18,186,232.80 and 9,720,204.80 is: 14,592,942.38
Step by Step Solution
- Step 1: Write the proportion equation
12,113,657.60 : 18,186,232.80 = 9,720,204.80 : x - Step 2: Convert to fraction form
12,113,657.60/18,186,232.80 = 9,720,204.80/x - Step 3: Cross multiply
12,113,657.60x = 18,186,232.80 × 9,720,204.80 - Step 4: Simplify right side
12,113,657.60x = 176,773,907,356,477.47 - Step 5: Solve for x
x = 176,773,907,356,477.47/12,113,657.60 - Step 6: Final answer
x = 14,592,942.38
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1.5x scale
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.