Finding the Fourth Proportional to 28,524,699.46, 39,363,795.88 and 15,471,677.98
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Solution
The fourth proportional to 28,524,699.46, 39,363,795.88 and 15,471,677.98 is: 21,350,758.66
Step by Step Solution
- Step 1: Write the proportion equation
28,524,699.46 : 39,363,795.88 = 15,471,677.98 : x - Step 2: Convert to fraction form
28,524,699.46/39,363,795.88 = 15,471,677.98/x - Step 3: Cross multiply
28,524,699.46x = 39,363,795.88 × 15,471,677.98 - Step 4: Simplify right side
28,524,699.46x = 609,023,973,925,810.75 - Step 5: Solve for x
x = 609,023,973,925,810.75/28,524,699.46 - Step 6: Final answer
x = 21,350,758.66
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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.