Finding the Fourth Proportional to 137,608,705.28, 189,900,044.58 and 75,729,043.84
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Solution
The fourth proportional to 137,608,705.28, 189,900,044.58 and 75,729,043.84 is: 104,506,097.72
Step by Step Solution
- Step 1: Write the proportion equation
137,608,705.28 : 189,900,044.58 = 75,729,043.84 : x - Step 2: Convert to fraction form
137,608,705.28/189,900,044.58 = 75,729,043.84/x - Step 3: Cross multiply
137,608,705.28x = 189,900,044.58 × 75,729,043.84 - Step 4: Simplify right side
137,608,705.28x = 14,380,948,800,742,026 - Step 5: Solve for x
x = 14,380,948,800,742,026/137,608,705.28 - Step 6: Final answer
x = 104,506,097.72
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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.