Finding the Fourth Proportional to 11,742,437.80, 17,613,656.70 and 7,437,765.70
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Solution
The fourth proportional to 11,742,437.80, 17,613,656.70 and 7,437,765.70 is: 11,156,648.55
Step by Step Solution
- Step 1: Write the proportion equation
11,742,437.80 : 17,613,656.70 = 7,437,765.70 : x - Step 2: Convert to fraction form
11,742,437.80/17,613,656.70 = 7,437,765.70/x - Step 3: Cross multiply
11,742,437.80x = 17,613,656.70 × 7,437,765.70 - Step 4: Simplify right side
11,742,437.80x = 131,006,251,654,835.19 - Step 5: Solve for x
x = 131,006,251,654,835.19/11,742,437.80 - Step 6: Final answer
x = 11,156,648.55
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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.