Finding the Fourth Proportional to 18,452,905.60, 27,679,358.40 and 5,673,389.80
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Solution
The fourth proportional to 18,452,905.60, 27,679,358.40 and 5,673,389.80 is: 8,510,084.70
Step by Step Solution
- Step 1: Write the proportion equation
18,452,905.60 : 27,679,358.40 = 5,673,389.80 : x - Step 2: Convert to fraction form
18,452,905.60/27,679,358.40 = 5,673,389.80/x - Step 3: Cross multiply
18,452,905.60x = 27,679,358.40 × 5,673,389.80 - Step 4: Simplify right side
18,452,905.60x = 157,035,789,617,104.31 - Step 5: Solve for x
x = 157,035,789,617,104.31/18,452,905.60 - Step 6: Final answer
x = 8,510,084.70
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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.