Finding the Fourth Proportional to 13,215,358.76, 19,842,497.37 and 7,390,955.82
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Solution
The fourth proportional to 13,215,358.76, 19,842,497.37 and 7,390,955.82 is: 11,097,316.69
Step by Step Solution
- Step 1: Write the proportion equation
13,215,358.76 : 19,842,497.37 = 7,390,955.82 : x - Step 2: Convert to fraction form
13,215,358.76/19,842,497.37 = 7,390,955.82/x - Step 3: Cross multiply
13,215,358.76x = 19,842,497.37 × 7,390,955.82 - Step 4: Simplify right side
13,215,358.76x = 146,655,021,382,931.53 - Step 5: Solve for x
x = 146,655,021,382,931.53/13,215,358.76 - Step 6: Final answer
x = 11,097,316.69
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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.