Finding the Fourth Proportional to 10,315,698.74, 14,235,381.15 and 5,731,902.26
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Solution
The fourth proportional to 10,315,698.74, 14,235,381.15 and 5,731,902.26 is: 7,909,867.81
Step by Step Solution
- Step 1: Write the proportion equation
10,315,698.74 : 14,235,381.15 = 5,731,902.26 : x - Step 2: Convert to fraction form
10,315,698.74/14,235,381.15 = 5,731,902.26/x - Step 3: Cross multiply
10,315,698.74x = 14,235,381.15 × 5,731,902.26 - Step 4: Simplify right side
10,315,698.74x = 81,595,813,385,646.39 - Step 5: Solve for x
x = 81,595,813,385,646.39/10,315,698.74 - Step 6: Final answer
x = 7,909,867.81
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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.