Finding the Fourth Proportional to 18,402,312.18, 27,603,464.58 and 4,939,140.18
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Solution
The fourth proportional to 18,402,312.18, 27,603,464.58 and 4,939,140.18 is: 7,408,709.28
Step by Step Solution
- Step 1: Write the proportion equation
18,402,312.18 : 27,603,464.58 = 4,939,140.18 : x - Step 2: Convert to fraction form
18,402,312.18/27,603,464.58 = 4,939,140.18/x - Step 3: Cross multiply
18,402,312.18x = 27,603,464.58 × 4,939,140.18 - Step 4: Simplify right side
18,402,312.18x = 136,337,381,014,284.81 - Step 5: Solve for x
x = 136,337,381,014,284.81/18,402,312.18 - Step 6: Final answer
x = 7,408,709.28
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1.5x scale
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.