Finding the Fourth Proportional to 7,447,291.20, 11,170,936.80 and 4,896,374.40
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Solution
The fourth proportional to 7,447,291.20, 11,170,936.80 and 4,896,374.40 is: 7,344,561.60
Step by Step Solution
- Step 1: Write the proportion equation
7,447,291.20 : 11,170,936.80 = 4,896,374.40 : x - Step 2: Convert to fraction form
7,447,291.20/11,170,936.80 = 4,896,374.40/x - Step 3: Cross multiply
7,447,291.20x = 11,170,936.80 × 4,896,374.40 - Step 4: Simplify right side
7,447,291.20x = 54,697,088,971,537.93 - Step 5: Solve for x
x = 54,697,088,971,537.93/7,447,291.20 - Step 6: Final answer
x = 7,344,561.60
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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.