Finding the Fourth Proportional to 13,215,355.07, 19,842,491.84 and 7,390,952.12
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Solution
The fourth proportional to 13,215,355.07, 19,842,491.84 and 7,390,952.12 is: 11,097,311.14
Step by Step Solution
- Step 1: Write the proportion equation
13,215,355.07 : 19,842,491.84 = 7,390,952.12 : x - Step 2: Convert to fraction form
13,215,355.07/19,842,491.84 = 7,390,952.12/x - Step 3: Cross multiply
13,215,355.07x = 19,842,491.84 × 7,390,952.12 - Step 4: Simplify right side
13,215,355.07x = 146,654,906,994,763.50 - Step 5: Solve for x
x = 146,654,906,994,763.50/13,215,355.07 - Step 6: Final answer
x = 11,097,311.14
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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.