Finding the Fourth Proportional to 13,065,221.13, 18,031,013.99 and 7,838,425.29
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Solution
The fourth proportional to 13,065,221.13, 18,031,013.99 and 7,838,425.29 is: 10,817,632.14
Step by Step Solution
- Step 1: Write the proportion equation
13,065,221.13 : 18,031,013.99 = 7,838,425.29 : x - Step 2: Convert to fraction form
13,065,221.13/18,031,013.99 = 7,838,425.29/x - Step 3: Cross multiply
13,065,221.13x = 18,031,013.99 × 7,838,425.29 - Step 4: Simplify right side
13,065,221.13x = 141,334,756,024,367.69 - Step 5: Solve for x
x = 141,334,756,024,367.69/13,065,221.13 - Step 6: Final answer
x = 10,817,632.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.