Finding the Fourth Proportional to 14,370,173.11, 19,827,878.56 and 8,257,420.63
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Solution
The fourth proportional to 14,370,173.11, 19,827,878.56 and 8,257,420.63 is: 11,393,539.40
Step by Step Solution
- Step 1: Write the proportion equation
14,370,173.11 : 19,827,878.56 = 8,257,420.63 : x - Step 2: Convert to fraction form
14,370,173.11/19,827,878.56 = 8,257,420.63/x - Step 3: Cross multiply
14,370,173.11x = 19,827,878.56 × 8,257,420.63 - Step 4: Simplify right side
14,370,173.11x = 163,727,133,470,478.69 - Step 5: Solve for x
x = 163,727,133,470,478.69/14,370,173.11 - Step 6: Final answer
x = 11,393,539.40
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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.