Finding the Fourth Proportional to 8,251,113.86, 12,379,204.74 and 3,938,666.99
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Solution
The fourth proportional to 8,251,113.86, 12,379,204.74 and 3,938,666.99 is: 5,909,210.07
Step by Step Solution
- Step 1: Write the proportion equation
8,251,113.86 : 12,379,204.74 = 3,938,666.99 : x - Step 2: Convert to fraction form
8,251,113.86/12,379,204.74 = 3,938,666.99/x - Step 3: Cross multiply
8,251,113.86x = 12,379,204.74 × 3,938,666.99 - Step 4: Simplify right side
8,251,113.86x = 48,757,565,071,889.54 - Step 5: Solve for x
x = 48,757,565,071,889.54/8,251,113.86 - Step 6: Final answer
x = 5,909,210.07
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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.