Finding the Fourth Proportional to 3,621,684,108.80, 5,432,526,163.20 and 1,292,697,070.40
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Solution
The fourth proportional to 3,621,684,108.80, 5,432,526,163.20 and 1,292,697,070.40 is: 1,939,045,605.60
Step by Step Solution
- Step 1: Write the proportion equation
3,621,684,108.80 : 5,432,526,163.20 = 1,292,697,070.40 : x - Step 2: Convert to fraction form
3,621,684,108.80/5,432,526,163.20 = 1,292,697,070.40/x - Step 3: Cross multiply
3,621,684,108.80x = 5,432,526,163.20 × 1,292,697,070.40 - Step 4: Simplify right side
3,621,684,108.80x = 7,022,610,656,039,992,320 - Step 5: Solve for x
x = 7,022,610,656,039,992,320/3,621,684,108.80 - Step 6: Final answer
x = 1,939,045,605.60
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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.