Finding the Fourth Proportional to 2,792,935,259.76, 4,189,833,356.85 and 952,257,469.80
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Solution
The fourth proportional to 2,792,935,259.76, 4,189,833,356.85 and 952,257,469.80 is: 1,428,532,973.45
Step by Step Solution
- Step 1: Write the proportion equation
2,792,935,259.76 : 4,189,833,356.85 = 952,257,469.80 : x - Step 2: Convert to fraction form
2,792,935,259.76/4,189,833,356.85 = 952,257,469.80/x - Step 3: Cross multiply
2,792,935,259.76x = 4,189,833,356.85 × 952,257,469.80 - Step 4: Simplify right side
2,792,935,259.76x = 3,989,800,111,277,621,248 - Step 5: Solve for x
x = 3,989,800,111,277,621,248/2,792,935,259.76 - Step 6: Final answer
x = 1,428,532,973.45
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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.