Finding the Fourth Proportional to 14,513,567.63, 20,028,717.45 and 7,987,197.07
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Solution
The fourth proportional to 14,513,567.63, 20,028,717.45 and 7,987,197.07 is: 11,022,328.71
Step by Step Solution
- Step 1: Write the proportion equation
14,513,567.63 : 20,028,717.45 = 7,987,197.07 : x - Step 2: Convert to fraction form
14,513,567.63/20,028,717.45 = 7,987,197.07/x - Step 3: Cross multiply
14,513,567.63x = 20,028,717.45 × 7,987,197.07 - Step 4: Simplify right side
14,513,567.63x = 159,973,313,232,354.28 - Step 5: Solve for x
x = 159,973,313,232,354.28/14,513,567.63 - Step 6: Final answer
x = 11,022,328.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.