Finding the Fourth Proportional to 8,709,430.80, 13,048,399.80 and 7,449,718.80
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Solution
The fourth proportional to 8,709,430.80, 13,048,399.80 and 7,449,718.80 is: 11,161,109.32
Step by Step Solution
- Step 1: Write the proportion equation
8,709,430.80 : 13,048,399.80 = 7,449,718.80 : x - Step 2: Convert to fraction form
8,709,430.80/13,048,399.80 = 7,449,718.80/x - Step 3: Cross multiply
8,709,430.80x = 13,048,399.80 × 7,449,718.80 - Step 4: Simplify right side
8,709,430.80x = 97,206,909,299,976.25 - Step 5: Solve for x
x = 97,206,909,299,976.25/8,709,430.80 - Step 6: Final answer
x = 11,161,109.32
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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.