Finding the Fourth Proportional to 5,124,965.68, 7,072,484.63 and 2,801,863.20
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Solution
The fourth proportional to 5,124,965.68, 7,072,484.63 and 2,801,863.20 is: 3,866,588.71
Step by Step Solution
- Step 1: Write the proportion equation
5,124,965.68 : 7,072,484.63 = 2,801,863.20 : x - Step 2: Convert to fraction form
5,124,965.68/7,072,484.63 = 2,801,863.20/x - Step 3: Cross multiply
5,124,965.68x = 7,072,484.63 × 2,801,863.20 - Step 4: Simplify right side
5,124,965.68x = 19,816,134,429,875.12 - Step 5: Solve for x
x = 19,816,134,429,875.12/5,124,965.68 - Step 6: Final answer
x = 3,866,588.71
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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.