Finding the Fourth Proportional to 7,279,228.71, 10,909,988.15 and 5,149,926.63
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Solution
The fourth proportional to 7,279,228.71, 10,909,988.15 and 5,149,926.63 is: 7,718,625.24
Step by Step Solution
- Step 1: Write the proportion equation
7,279,228.71 : 10,909,988.15 = 5,149,926.63 : x - Step 2: Convert to fraction form
7,279,228.71/10,909,988.15 = 5,149,926.63/x - Step 3: Cross multiply
7,279,228.71x = 10,909,988.15 × 5,149,926.63 - Step 4: Simplify right side
7,279,228.71x = 56,185,638,480,919.80 - Step 5: Solve for x
x = 56,185,638,480,919.80/7,279,228.71 - Step 6: Final answer
x = 7,718,625.24
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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.