Finding the Fourth Proportional to 312,478,025.28, 468,742,596.68 and 156,951,862.80
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Solution
The fourth proportional to 312,478,025.28, 468,742,596.68 and 156,951,862.80 is: 235,440,631.89
Step by Step Solution
- Step 1: Write the proportion equation
312,478,025.28 : 468,742,596.68 = 156,951,862.80 : x - Step 2: Convert to fraction form
312,478,025.28/468,742,596.68 = 156,951,862.80/x - Step 3: Cross multiply
312,478,025.28x = 468,742,596.68 × 156,951,862.80 - Step 4: Simplify right side
312,478,025.28x = 73,570,023,722,635,104 - Step 5: Solve for x
x = 73,570,023,722,635,104/312,478,025.28 - Step 6: Final answer
x = 235,440,631.89
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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.