Finding the Fourth Proportional to 276,438,209.99, 381,482,218.31 and 150,990,379.81
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Solution
The fourth proportional to 276,438,209.99, 381,482,218.31 and 150,990,379.81 is: 208,365,352.37
Step by Step Solution
- Step 1: Write the proportion equation
276,438,209.99 : 381,482,218.31 = 150,990,379.81 : x - Step 2: Convert to fraction form
276,438,209.99/381,482,218.31 = 150,990,379.81/x - Step 3: Cross multiply
276,438,209.99x = 381,482,218.31 × 150,990,379.81 - Step 4: Simplify right side
276,438,209.99x = 57,600,145,031,679,584 - Step 5: Solve for x
x = 57,600,145,031,679,584/276,438,209.99 - Step 6: Final answer
x = 208,365,352.37
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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.