Finding the Fourth Proportional to 91,044,090.40, 136,566,135.60 and 80,521,558.60
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Solution
The fourth proportional to 91,044,090.40, 136,566,135.60 and 80,521,558.60 is: 120,782,337.90
Step by Step Solution
- Step 1: Write the proportion equation
91,044,090.40 : 136,566,135.60 = 80,521,558.60 : x - Step 2: Convert to fraction form
91,044,090.40/136,566,135.60 = 80,521,558.60/x - Step 3: Cross multiply
91,044,090.40x = 136,566,135.60 × 80,521,558.60 - Step 4: Simplify right side
91,044,090.40x = 10,996,518,090,490,944 - Step 5: Solve for x
x = 10,996,518,090,490,944/91,044,090.40 - Step 6: Final answer
x = 120,782,337.90
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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.