Finding the Fourth Proportional to 913,467,999.25, 1,260,597,932.19 and 495,785,291.41
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Solution
The fourth proportional to 913,467,999.25, 1,260,597,932.19 and 495,785,291.41 is: 684,190,265.75
Step by Step Solution
- Step 1: Write the proportion equation
913,467,999.25 : 1,260,597,932.19 = 495,785,291.41 : x - Step 2: Convert to fraction form
913,467,999.25/1,260,597,932.19 = 495,785,291.41/x - Step 3: Cross multiply
913,467,999.25x = 1,260,597,932.19 × 495,785,291.41 - Step 4: Simplify right side
913,467,999.25x = 624,985,913,155,359,616 - Step 5: Solve for x
x = 624,985,913,155,359,616/913,467,999.25 - Step 6: Final answer
x = 684,190,265.75
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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.