Finding the Fourth Proportional to 913,467,997.99, 1,260,597,930.46 and 495,785,290.15
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Solution
The fourth proportional to 913,467,997.99, 1,260,597,930.46 and 495,785,290.15 is: 684,190,264.02
Step by Step Solution
- Step 1: Write the proportion equation
913,467,997.99 : 1,260,597,930.46 = 495,785,290.15 : x - Step 2: Convert to fraction form
913,467,997.99/1,260,597,930.46 = 495,785,290.15/x - Step 3: Cross multiply
913,467,997.99x = 1,260,597,930.46 × 495,785,290.15 - Step 4: Simplify right side
913,467,997.99x = 624,985,910,718,713,344 - Step 5: Solve for x
x = 624,985,910,718,713,344/913,467,997.99 - Step 6: Final answer
x = 684,190,264.02
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1.5x scale
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.