Finding the Fourth Proportional to 42,455,502.54, 63,682,903.86 and 12,163,394.70
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Solution
The fourth proportional to 42,455,502.54, 63,682,903.86 and 12,163,394.70 is: 18,244,991.79
Step by Step Solution
- Step 1: Write the proportion equation
42,455,502.54 : 63,682,903.86 = 12,163,394.70 : x - Step 2: Convert to fraction form
42,455,502.54/63,682,903.86 = 12,163,394.70/x - Step 3: Cross multiply
42,455,502.54x = 63,682,903.86 × 12,163,394.70 - Step 4: Simplify right side
42,455,502.54x = 774,600,295,291,333.50 - Step 5: Solve for x
x = 774,600,295,291,333.50/42,455,502.54 - Step 6: Final answer
x = 18,244,991.79
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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.