Finding the Fourth Proportional to 30,213,698.80, 45,288,276.99 and 17,231,900.08
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Solution
The fourth proportional to 30,213,698.80, 45,288,276.99 and 17,231,900.08 is: 25,829,444.75
Step by Step Solution
- Step 1: Write the proportion equation
30,213,698.80 : 45,288,276.99 = 17,231,900.08 : x - Step 2: Convert to fraction form
30,213,698.80/45,288,276.99 = 17,231,900.08/x - Step 3: Cross multiply
30,213,698.80x = 45,288,276.99 × 17,231,900.08 - Step 4: Simplify right side
30,213,698.80x = 780,403,063,887,043.12 - Step 5: Solve for x
x = 780,403,063,887,043.12/30,213,698.80 - Step 6: Final answer
x = 25,829,444.75
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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.