Finding the Fourth Proportional to 7,909,916.10, 11,864,874.18 and 3,648,823.62
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Solution
The fourth proportional to 7,909,916.10, 11,864,874.18 and 3,648,823.62 is: 5,473,235.44
Step by Step Solution
- Step 1: Write the proportion equation
7,909,916.10 : 11,864,874.18 = 3,648,823.62 : x - Step 2: Convert to fraction form
7,909,916.10/11,864,874.18 = 3,648,823.62/x - Step 3: Cross multiply
7,909,916.10x = 11,864,874.18 × 3,648,823.62 - Step 4: Simplify right side
7,909,916.10x = 43,292,833,156,312.13 - Step 5: Solve for x
x = 43,292,833,156,312.13/7,909,916.10 - Step 6: Final answer
x = 5,473,235.44
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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.