Finding the Fourth Proportional to 11,153,386.70, 16,730,080.05 and 8,319,034.70
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Solution
The fourth proportional to 11,153,386.70, 16,730,080.05 and 8,319,034.70 is: 12,478,552.05
Step by Step Solution
- Step 1: Write the proportion equation
11,153,386.70 : 16,730,080.05 = 8,319,034.70 : x - Step 2: Convert to fraction form
11,153,386.70/16,730,080.05 = 8,319,034.70/x - Step 3: Cross multiply
11,153,386.70x = 16,730,080.05 × 8,319,034.70 - Step 4: Simplify right side
11,153,386.70x = 139,178,116,469,727.75 - Step 5: Solve for x
x = 139,178,116,469,727.75/11,153,386.70 - Step 6: Final answer
x = 12,478,552.05
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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.