Finding the Fourth Proportional to 12,136,828.58, 18,212,425.14 and 4,465,860.07
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Solution
The fourth proportional to 12,136,828.58, 18,212,425.14 and 4,465,860.07 is: 6,701,432.89
Step by Step Solution
- Step 1: Write the proportion equation
12,136,828.58 : 18,212,425.14 = 4,465,860.07 : x - Step 2: Convert to fraction form
12,136,828.58/18,212,425.14 = 4,465,860.07/x - Step 3: Cross multiply
12,136,828.58x = 18,212,425.14 × 4,465,860.07 - Step 4: Simplify right side
12,136,828.58x = 81,334,142,210,590.17 - Step 5: Solve for x
x = 81,334,142,210,590.17/12,136,828.58 - Step 6: Final answer
x = 6,701,432.89
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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.