Finding the Fourth Proportional to 18,331,319.70, 27,496,979.55 and 9,828,263.70
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Solution
The fourth proportional to 18,331,319.70, 27,496,979.55 and 9,828,263.70 is: 14,742,395.55
Step by Step Solution
- Step 1: Write the proportion equation
18,331,319.70 : 27,496,979.55 = 9,828,263.70 : x - Step 2: Convert to fraction form
18,331,319.70/27,496,979.55 = 9,828,263.70/x - Step 3: Cross multiply
18,331,319.70x = 27,496,979.55 × 9,828,263.70 - Step 4: Simplify right side
18,331,319.70x = 270,247,565,970,907.31 - Step 5: Solve for x
x = 270,247,565,970,907.31/18,331,319.70 - Step 6: Final answer
x = 14,742,395.55
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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.