Finding the Fourth Proportional to 12,028,988.59, 18,024,907.68 and 8,123,135.53
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Solution
The fourth proportional to 12,028,988.59, 18,024,907.68 and 8,123,135.53 is: 12,172,159.52
Step by Step Solution
- Step 1: Write the proportion equation
12,028,988.59 : 18,024,907.68 = 8,123,135.53 : x - Step 2: Convert to fraction form
12,028,988.59/18,024,907.68 = 8,123,135.53/x - Step 3: Cross multiply
12,028,988.59x = 18,024,907.68 × 8,123,135.53 - Step 4: Simplify right side
12,028,988.59x = 146,418,767,959,762.22 - Step 5: Solve for x
x = 146,418,767,959,762.22/12,028,988.59 - Step 6: Final answer
x = 12,172,159.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.