Finding the Fourth Proportional to 19,281,815.84, 28,924,917.74 and 6,991,568.08
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Solution
The fourth proportional to 19,281,815.84, 28,924,917.74 and 6,991,568.08 is: 10,488,147.66
Step by Step Solution
- Step 1: Write the proportion equation
19,281,815.84 : 28,924,917.74 = 6,991,568.08 : x - Step 2: Convert to fraction form
19,281,815.84/28,924,917.74 = 6,991,568.08/x - Step 3: Cross multiply
19,281,815.84x = 28,924,917.74 × 6,991,568.08 - Step 4: Simplify right side
19,281,815.84x = 202,230,531,615,026.41 - Step 5: Solve for x
x = 202,230,531,615,026.41/19,281,815.84 - Step 6: Final answer
x = 10,488,147.66
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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.