Finding the Fourth Proportional to 57,731,203.28, 79,668,826.08 and 31,625,684.12
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Solution
The fourth proportional to 57,731,203.28, 79,668,826.08 and 31,625,684.12 is: 43,643,315.65
Step by Step Solution
- Step 1: Write the proportion equation
57,731,203.28 : 79,668,826.08 = 31,625,684.12 : x - Step 2: Convert to fraction form
57,731,203.28/79,668,826.08 = 31,625,684.12/x - Step 3: Cross multiply
57,731,203.28x = 79,668,826.08 × 31,625,684.12 - Step 4: Simplify right side
57,731,203.28x = 2,519,581,127,817,298 - Step 5: Solve for x
x = 2,519,581,127,817,298/57,731,203.28 - Step 6: Final answer
x = 43,643,315.65
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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.