Finding the Fourth Proportional to 5,184,981.15, 7,155,235.32 and 2,861,873.19
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Solution
The fourth proportional to 5,184,981.15, 7,155,235.32 and 2,861,873.19 is: 3,949,363.66
Step by Step Solution
- Step 1: Write the proportion equation
5,184,981.15 : 7,155,235.32 = 2,861,873.19 : x - Step 2: Convert to fraction form
5,184,981.15/7,155,235.32 = 2,861,873.19/x - Step 3: Cross multiply
5,184,981.15x = 7,155,235.32 × 2,861,873.19 - Step 4: Simplify right side
5,184,981.15x = 20,477,376,130,449.07 - Step 5: Solve for x
x = 20,477,376,130,449.07/5,184,981.15 - Step 6: Final answer
x = 3,949,363.66
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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.