Finding the Fourth Proportional to 280,166,605.99, 420,413,671.54 and 202,366,792.87
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Solution
The fourth proportional to 280,166,605.99, 420,413,671.54 and 202,366,792.87 is: 303,668,476.43
Step by Step Solution
- Step 1: Write the proportion equation
280,166,605.99 : 420,413,671.54 = 202,366,792.87 : x - Step 2: Convert to fraction form
280,166,605.99/420,413,671.54 = 202,366,792.87/x - Step 3: Cross multiply
280,166,605.99x = 420,413,671.54 × 202,366,792.87 - Step 4: Simplify right side
280,166,605.99x = 85,077,766,387,453,312 - Step 5: Solve for x
x = 85,077,766,387,453,312/280,166,605.99 - Step 6: Final answer
x = 303,668,476.43
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1.5x scale
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.