Finding the Fourth Proportional to 14,260,373.40, 19,681,830.78 and 8,462,352.09
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Solution
The fourth proportional to 14,260,373.40, 19,681,830.78 and 8,462,352.09 is: 11,679,538.62
Step by Step Solution
- Step 1: Write the proportion equation
14,260,373.40 : 19,681,830.78 = 8,462,352.09 : x - Step 2: Convert to fraction form
14,260,373.40/19,681,830.78 = 8,462,352.09/x - Step 3: Cross multiply
14,260,373.40x = 19,681,830.78 × 8,462,352.09 - Step 4: Simplify right side
14,260,373.40x = 166,554,581,836,159.34 - Step 5: Solve for x
x = 166,554,581,836,159.34/14,260,373.40 - Step 6: Final answer
x = 11,679,538.62
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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.