Finding the Fourth Proportional to 26,178,939.84, 39,215,337.62 and 12,137,447.60
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Solution
The fourth proportional to 26,178,939.84, 39,215,337.62 and 12,137,447.60 is: 18,181,565.35
Step by Step Solution
- Step 1: Write the proportion equation
26,178,939.84 : 39,215,337.62 = 12,137,447.60 : x - Step 2: Convert to fraction form
26,178,939.84/39,215,337.62 = 12,137,447.60/x - Step 3: Cross multiply
26,178,939.84x = 39,215,337.62 × 12,137,447.60 - Step 4: Simplify right side
26,178,939.84x = 475,974,105,479,058.69 - Step 5: Solve for x
x = 475,974,105,479,058.69/26,178,939.84 - Step 6: Final answer
x = 18,181,565.35
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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.