Finding the Fourth Proportional to 10,926,759.70, 16,390,139.55 and 10,366,887.70
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Solution
The fourth proportional to 10,926,759.70, 16,390,139.55 and 10,366,887.70 is: 15,550,331.55
Step by Step Solution
- Step 1: Write the proportion equation
10,926,759.70 : 16,390,139.55 = 10,366,887.70 : x - Step 2: Convert to fraction form
10,926,759.70/16,390,139.55 = 10,366,887.70/x - Step 3: Cross multiply
10,926,759.70x = 16,390,139.55 × 10,366,887.70 - Step 4: Simplify right side
10,926,759.70x = 169,914,736,102,178.53 - Step 5: Solve for x
x = 169,914,736,102,178.53/10,926,759.70 - Step 6: Final answer
x = 15,550,331.55
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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.