Finding the Fourth Proportional to 57,461,529.15, 79,298,592.80 and 31,357,728.99
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Solution
The fourth proportional to 57,461,529.15, 79,298,592.80 and 31,357,728.99 is: 43,274,584.21
Step by Step Solution
- Step 1: Write the proportion equation
57,461,529.15 : 79,298,592.80 = 31,357,728.99 : x - Step 2: Convert to fraction form
57,461,529.15/79,298,592.80 = 31,357,728.99/x - Step 3: Cross multiply
57,461,529.15x = 79,298,592.80 × 31,357,728.99 - Step 4: Simplify right side
57,461,529.15x = 2,486,623,782,153,976.50 - Step 5: Solve for x
x = 2,486,623,782,153,976.50/57,461,529.15 - Step 6: Final answer
x = 43,274,584.21
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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.