Finding the Fourth Proportional to 3,620,649,726.80, 5,430,974,590.20 and 1,783,989,630.80
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Solution
The fourth proportional to 3,620,649,726.80, 5,430,974,590.20 and 1,783,989,630.80 is: 2,675,984,446.20
Step by Step Solution
- Step 1: Write the proportion equation
3,620,649,726.80 : 5,430,974,590.20 = 1,783,989,630.80 : x - Step 2: Convert to fraction form
3,620,649,726.80/5,430,974,590.20 = 1,783,989,630.80/x - Step 3: Cross multiply
3,620,649,726.80x = 5,430,974,590.20 × 1,783,989,630.80 - Step 4: Simplify right side
3,620,649,726.80x = 9,688,802,354,055,077,888 - Step 5: Solve for x
x = 9,688,802,354,055,077,888/3,620,649,726.80 - Step 6: Final answer
x = 2,675,984,446.20
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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.