Finding the Fourth Proportional to 513,060,931.12, 769,591,659.12 and 124,883,827.60
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Solution
The fourth proportional to 513,060,931.12, 769,591,659.12 and 124,883,827.60 is: 187,325,805.28
Step by Step Solution
- Step 1: Write the proportion equation
513,060,931.12 : 769,591,659.12 = 124,883,827.60 : x - Step 2: Convert to fraction form
513,060,931.12/769,591,659.12 = 124,883,827.60/x - Step 3: Cross multiply
513,060,931.12x = 769,591,659.12 × 124,883,827.60 - Step 4: Simplify right side
513,060,931.12x = 96,109,552,079,940,048 - Step 5: Solve for x
x = 96,109,552,079,940,048/513,060,931.12 - Step 6: Final answer
x = 187,325,805.28
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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.