Finding the Fourth Proportional to 20,674,901.10, 31,012,349.70 and 5,528,438.94
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Solution
The fourth proportional to 20,674,901.10, 31,012,349.70 and 5,528,438.94 is: 8,292,657.89
Step by Step Solution
- Step 1: Write the proportion equation
20,674,901.10 : 31,012,349.70 = 5,528,438.94 : x - Step 2: Convert to fraction form
20,674,901.10/31,012,349.70 = 5,528,438.94/x - Step 3: Cross multiply
20,674,901.10x = 31,012,349.70 × 5,528,438.94 - Step 4: Simplify right side
20,674,901.10x = 171,449,881,702,377.31 - Step 5: Solve for x
x = 171,449,881,702,377.31/20,674,901.10 - Step 6: Final answer
x = 8,292,657.89
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1.5x scale
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.