Finding the Fourth Proportional to 13,357,878.15, 18,433,907.30 and 7,246,306.65
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Solution
The fourth proportional to 13,357,878.15, 18,433,907.30 and 7,246,306.65 is: 9,999,922.41
Step by Step Solution
- Step 1: Write the proportion equation
13,357,878.15 : 18,433,907.30 = 7,246,306.65 : x - Step 2: Convert to fraction form
13,357,878.15/18,433,907.30 = 7,246,306.65/x - Step 3: Cross multiply
13,357,878.15x = 18,433,907.30 × 7,246,306.65 - Step 4: Simplify right side
13,357,878.15x = 133,577,745,017,242.03 - Step 5: Solve for x
x = 133,577,745,017,242.03/13,357,878.15 - Step 6: Final answer
x = 9,999,922.41
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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.