Finding the Fourth Proportional to 7,381,612.70, 11,072,419.05 and 4,345,862.30
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Solution
The fourth proportional to 7,381,612.70, 11,072,419.05 and 4,345,862.30 is: 6,518,793.45
Step by Step Solution
- Step 1: Write the proportion equation
7,381,612.70 : 11,072,419.05 = 4,345,862.30 : x - Step 2: Convert to fraction form
7,381,612.70/11,072,419.05 = 4,345,862.30/x - Step 3: Cross multiply
7,381,612.70x = 11,072,419.05 × 4,345,862.30 - Step 4: Simplify right side
7,381,612.70x = 48,119,208,519,196.81 - Step 5: Solve for x
x = 48,119,208,519,196.81/7,381,612.70 - Step 6: Final answer
x = 6,518,793.45
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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.