Finding the Fourth Proportional to 5,154,538.14, 7,113,279.20 and 2,862,698.76
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Solution
The fourth proportional to 5,154,538.14, 7,113,279.20 and 2,862,698.76 is: 3,950,533.49
Step by Step Solution
- Step 1: Write the proportion equation
5,154,538.14 : 7,113,279.20 = 2,862,698.76 : x - Step 2: Convert to fraction form
5,154,538.14/7,113,279.20 = 2,862,698.76/x - Step 3: Cross multiply
5,154,538.14x = 7,113,279.20 × 2,862,698.76 - Step 4: Simplify right side
5,154,538.14x = 20,363,175,531,060.30 - Step 5: Solve for x
x = 20,363,175,531,060.30/5,154,538.14 - Step 6: Final answer
x = 3,950,533.49
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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.