Finding the Fourth Proportional to 19,539,986.10, 29,304,730.35 and 8,178,083.70
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Solution
The fourth proportional to 19,539,986.10, 29,304,730.35 and 8,178,083.70 is: 12,264,928.77
Step by Step Solution
- Step 1: Write the proportion equation
19,539,986.10 : 29,304,730.35 = 8,178,083.70 : x - Step 2: Convert to fraction form
19,539,986.10/29,304,730.35 = 8,178,083.70/x - Step 3: Cross multiply
19,539,986.10x = 29,304,730.35 × 8,178,083.70 - Step 4: Simplify right side
19,539,986.10x = 239,656,537,608,230.31 - Step 5: Solve for x
x = 239,656,537,608,230.31/19,539,986.10 - Step 6: Final answer
x = 12,264,928.77
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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.