Finding the Fourth Proportional to 194,740,931.68, 268,742,543.56 and 105,432,858.07
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Solution
The fourth proportional to 194,740,931.68, 268,742,543.56 and 105,432,858.07 is: 145,497,375.45
Step by Step Solution
- Step 1: Write the proportion equation
194,740,931.68 : 268,742,543.56 = 105,432,858.07 : x - Step 2: Convert to fraction form
194,740,931.68/268,742,543.56 = 105,432,858.07/x - Step 3: Cross multiply
194,740,931.68x = 268,742,543.56 × 105,432,858.07 - Step 4: Simplify right side
194,740,931.68x = 28,334,294,451,596,832 - Step 5: Solve for x
x = 28,334,294,451,596,832/194,740,931.68 - Step 6: Final answer
x = 145,497,375.45
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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.