Finding the Fourth Proportional to 13,482,386.16, 18,605,758.68 and 7,370,814.96
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Solution
The fourth proportional to 13,482,386.16, 18,605,758.68 and 7,370,814.96 is: 10,171,760.61
Step by Step Solution
- Step 1: Write the proportion equation
13,482,386.16 : 18,605,758.68 = 7,370,814.96 : x - Step 2: Convert to fraction form
13,482,386.16/18,605,758.68 = 7,370,814.96/x - Step 3: Cross multiply
13,482,386.16x = 18,605,758.68 × 7,370,814.96 - Step 4: Simplify right side
13,482,386.16x = 137,139,604,420,693.84 - Step 5: Solve for x
x = 137,139,604,420,693.84/13,482,386.16 - Step 6: Final answer
x = 10,171,760.61
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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.