Finding the Fourth Proportional to 11,712,127.21, 16,160,438.68 and 7,358,691.16
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Solution
The fourth proportional to 11,712,127.21, 16,160,438.68 and 7,358,691.16 is: 10,153,550.69
Step by Step Solution
- Step 1: Write the proportion equation
11,712,127.21 : 16,160,438.68 = 7,358,691.16 : x - Step 2: Convert to fraction form
11,712,127.21/16,160,438.68 = 7,358,691.16/x - Step 3: Cross multiply
11,712,127.21x = 16,160,438.68 × 7,358,691.16 - Step 4: Simplify right side
11,712,127.21x = 118,919,677,339,705.25 - Step 5: Solve for x
x = 118,919,677,339,705.25/11,712,127.21 - Step 6: Final answer
x = 10,153,550.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.