Finding the Fourth Proportional to 194,740,931.92, 268,742,543.91 and 105,432,858.31
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Solution
The fourth proportional to 194,740,931.92, 268,742,543.91 and 105,432,858.31 is: 145,497,375.79
Step by Step Solution
- Step 1: Write the proportion equation
194,740,931.92 : 268,742,543.91 = 105,432,858.31 : x - Step 2: Convert to fraction form
194,740,931.92/268,742,543.91 = 105,432,858.31/x - Step 3: Cross multiply
194,740,931.92x = 268,742,543.91 × 105,432,858.31 - Step 4: Simplify right side
194,740,931.92x = 28,334,294,553,931,988 - Step 5: Solve for x
x = 28,334,294,553,931,988/194,740,931.92 - Step 6: Final answer
x = 145,497,375.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.