Finding the Fourth Proportional to 409,709,959.80, 614,564,939.70 and 409,709,959.80
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Solution
The fourth proportional to 409,709,959.80, 614,564,939.70 and 409,709,959.80 is: 614,564,939.70
Step by Step Solution
- Step 1: Write the proportion equation
409,709,959.80 : 614,564,939.70 = 409,709,959.80 : x - Step 2: Convert to fraction form
409,709,959.80/614,564,939.70 = 409,709,959.80/x - Step 3: Cross multiply
409,709,959.80x = 614,564,939.70 × 409,709,959.80 - Step 4: Simplify right side
409,709,959.80x = 251,793,376,738,976,448 - Step 5: Solve for x
x = 251,793,376,738,976,448/409,709,959.80 - Step 6: Final answer
x = 614,564,939.70
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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.