Finding the Fourth Proportional to 931,615,374.28, 1,396,898,698.86 and 309,497,548.84
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Solution
The fourth proportional to 931,615,374.28, 1,396,898,698.86 and 309,497,548.84 is: 464,072,121.62
Step by Step Solution
- Step 1: Write the proportion equation
931,615,374.28 : 1,396,898,698.86 = 309,497,548.84 : x - Step 2: Convert to fraction form
931,615,374.28/1,396,898,698.86 = 309,497,548.84/x - Step 3: Cross multiply
931,615,374.28x = 1,396,898,698.86 × 309,497,548.84 - Step 4: Simplify right side
931,615,374.28x = 432,336,723,274,955,264 - Step 5: Solve for x
x = 432,336,723,274,955,264/931,615,374.28 - Step 6: Final answer
x = 464,072,121.62
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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.