Finding the Fourth Proportional to 14,432,775.68, 19,917,071.87 and 7,817,199.55
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Solution
The fourth proportional to 14,432,775.68, 19,917,071.87 and 7,817,199.55 is: 10,787,649.49
Step by Step Solution
- Step 1: Write the proportion equation
14,432,775.68 : 19,917,071.87 = 7,817,199.55 : x - Step 2: Convert to fraction form
14,432,775.68/19,917,071.87 = 7,817,199.55/x - Step 3: Cross multiply
14,432,775.68x = 19,917,071.87 × 7,817,199.55 - Step 4: Simplify right side
14,432,775.68x = 155,695,725,259,481.66 - Step 5: Solve for x
x = 155,695,725,259,481.66/14,432,775.68 - Step 6: Final answer
x = 10,787,649.49
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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.