Finding the Fourth Proportional to 1,370,209,941.36, 1,890,673,734.66 and 798,087,152.24
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Solution
The fourth proportional to 1,370,209,941.36, 1,890,673,734.66 and 798,087,152.24 is: 1,101,234,468.65
Step by Step Solution
- Step 1: Write the proportion equation
1,370,209,941.36 : 1,890,673,734.66 = 798,087,152.24 : x - Step 2: Convert to fraction form
1,370,209,941.36/1,890,673,734.66 = 798,087,152.24/x - Step 3: Cross multiply
1,370,209,941.36x = 1,890,673,734.66 × 798,087,152.24 - Step 4: Simplify right side
1,370,209,941.36x = 1,508,922,416,709,764,864 - Step 5: Solve for x
x = 1,508,922,416,709,764,864/1,370,209,941.36 - Step 6: Final answer
x = 1,101,234,468.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.