Finding the Fourth Proportional to 13,118,904.20, 19,682,042.70 and 6,387,537.80
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Solution
The fourth proportional to 13,118,904.20, 19,682,042.70 and 6,387,537.80 is: 9,583,101.59
Step by Step Solution
- Step 1: Write the proportion equation
13,118,904.20 : 19,682,042.70 = 6,387,537.80 : x - Step 2: Convert to fraction form
13,118,904.20/19,682,042.70 = 6,387,537.80/x - Step 3: Cross multiply
13,118,904.20x = 19,682,042.70 × 6,387,537.80 - Step 4: Simplify right side
13,118,904.20x = 125,719,791,727,464.05 - Step 5: Solve for x
x = 125,719,791,727,464.05/13,118,904.20 - Step 6: Final answer
x = 9,583,101.59
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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.