Finding the Fourth Proportional to 18,480,155.87, 27,700,686.18 and 6,960,638.81
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Solution
The fourth proportional to 18,480,155.87, 27,700,686.18 and 6,960,638.81 is: 10,433,595.51
Step by Step Solution
- Step 1: Write the proportion equation
18,480,155.87 : 27,700,686.18 = 6,960,638.81 : x - Step 2: Convert to fraction form
18,480,155.87/27,700,686.18 = 6,960,638.81/x - Step 3: Cross multiply
18,480,155.87x = 27,700,686.18 × 6,960,638.81 - Step 4: Simplify right side
18,480,155.87x = 192,814,471,357,390.34 - Step 5: Solve for x
x = 192,814,471,357,390.34/18,480,155.87 - Step 6: Final answer
x = 10,433,595.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.