Finding the Fourth Proportional to 309,041,703.91, 426,477,453.82 and 169,821,433.74
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Solution
The fourth proportional to 309,041,703.91, 426,477,453.82 and 169,821,433.74 is: 234,353,524.95
Step by Step Solution
- Step 1: Write the proportion equation
309,041,703.91 : 426,477,453.82 = 169,821,433.74 : x - Step 2: Convert to fraction form
309,041,703.91/426,477,453.82 = 169,821,433.74/x - Step 3: Cross multiply
309,041,703.91x = 426,477,453.82 × 169,821,433.74 - Step 4: Simplify right side
309,041,703.91x = 72,425,012,666,671,776 - Step 5: Solve for x
x = 72,425,012,666,671,776/309,041,703.91 - Step 6: Final answer
x = 234,353,524.95
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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.