Finding the Fourth Proportional to 5,159,419.19, 7,739,303.75 and 1,372,905.71
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Solution
The fourth proportional to 5,159,419.19, 7,739,303.75 and 1,372,905.71 is: 2,059,405.12
Step by Step Solution
- Step 1: Write the proportion equation
5,159,419.19 : 7,739,303.75 = 1,372,905.71 : x - Step 2: Convert to fraction form
5,159,419.19/7,739,303.75 = 1,372,905.71/x - Step 3: Cross multiply
5,159,419.19x = 7,739,303.75 × 1,372,905.71 - Step 4: Simplify right side
5,159,419.19x = 10,625,334,309,799.41 - Step 5: Solve for x
x = 10,625,334,309,799.41/5,159,419.19 - Step 6: Final answer
x = 2,059,405.12
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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.