Finding the Fourth Proportional to 13,291,204.60, 19,936,806.90 and 7,551,641.80
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Solution
The fourth proportional to 13,291,204.60, 19,936,806.90 and 7,551,641.80 is: 11,327,462.70
Step by Step Solution
- Step 1: Write the proportion equation
13,291,204.60 : 19,936,806.90 = 7,551,641.80 : x - Step 2: Convert to fraction form
13,291,204.60/19,936,806.90 = 7,551,641.80/x - Step 3: Cross multiply
13,291,204.60x = 19,936,806.90 × 7,551,641.80 - Step 4: Simplify right side
13,291,204.60x = 150,555,624,344,568.41 - Step 5: Solve for x
x = 150,555,624,344,568.41/13,291,204.60 - Step 6: Final answer
x = 11,327,462.70
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Double scale
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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.