Finding the Fourth Proportional to 11,355,910.46, 15,671,220.09 and 6,461,132.44
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Solution
The fourth proportional to 11,355,910.46, 15,671,220.09 and 6,461,132.44 is: 8,916,398.98
Step by Step Solution
- Step 1: Write the proportion equation
11,355,910.46 : 15,671,220.09 = 6,461,132.44 : x - Step 2: Convert to fraction form
11,355,910.46/15,671,220.09 = 6,461,132.44/x - Step 3: Cross multiply
11,355,910.46x = 15,671,220.09 × 6,461,132.44 - Step 4: Simplify right side
11,355,910.46x = 101,253,828,458,700.67 - Step 5: Solve for x
x = 101,253,828,458,700.67/11,355,910.46 - Step 6: Final answer
x = 8,916,398.98
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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.