Finding the Fourth Proportional to 665,963,130.20, 998,944,695.30 and 282,960,915.80
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Solution
The fourth proportional to 665,963,130.20, 998,944,695.30 and 282,960,915.80 is: 424,441,373.70
Step by Step Solution
- Step 1: Write the proportion equation
665,963,130.20 : 998,944,695.30 = 282,960,915.80 : x - Step 2: Convert to fraction form
665,963,130.20/998,944,695.30 = 282,960,915.80/x - Step 3: Cross multiply
665,963,130.20x = 998,944,695.30 × 282,960,915.80 - Step 4: Simplify right side
665,963,130.20x = 282,662,305,815,639,968 - Step 5: Solve for x
x = 282,662,305,815,639,968/665,963,130.20 - Step 6: Final answer
x = 424,441,373.70
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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.