Finding the Fourth Proportional to 5,211,332.68, 7,191,599.68 and 2,919,512.20
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Solution
The fourth proportional to 5,211,332.68, 7,191,599.68 and 2,919,512.20 is: 4,028,904.75
Step by Step Solution
- Step 1: Write the proportion equation
5,211,332.68 : 7,191,599.68 = 2,919,512.20 : x - Step 2: Convert to fraction form
5,211,332.68/7,191,599.68 = 2,919,512.20/x - Step 3: Cross multiply
5,211,332.68x = 7,191,599.68 × 2,919,512.20 - Step 4: Simplify right side
5,211,332.68x = 20,995,963,003,276.10 - Step 5: Solve for x
x = 20,995,963,003,276.10/5,211,332.68 - Step 6: Final answer
x = 4,028,904.75
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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.