Finding the Fourth Proportional to 7,943,335.40, 11,919,927.90 and 4,159,533.80
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Solution
The fourth proportional to 7,943,335.40, 11,919,927.90 and 4,159,533.80 is: 6,241,879.58
Step by Step Solution
- Step 1: Write the proportion equation
7,943,335.40 : 11,919,927.90 = 4,159,533.80 : x - Step 2: Convert to fraction form
7,943,335.40/11,919,927.90 = 4,159,533.80/x - Step 3: Cross multiply
7,943,335.40x = 11,919,927.90 × 4,159,533.80 - Step 4: Simplify right side
7,943,335.40x = 49,581,342,993,613.02 - Step 5: Solve for x
x = 49,581,342,993,613.02/7,943,335.40 - Step 6: Final answer
x = 6,241,879.58
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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.