Finding the Fourth Proportional to 187,409,412.72, 280,748,014.92 and 129,106,792.08
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Solution
The fourth proportional to 187,409,412.72, 280,748,014.92 and 129,106,792.08 is: 193,407,978.09
Step by Step Solution
- Step 1: Write the proportion equation
187,409,412.72 : 280,748,014.92 = 129,106,792.08 : x - Step 2: Convert to fraction form
187,409,412.72/280,748,014.92 = 129,106,792.08/x - Step 3: Cross multiply
187,409,412.72x = 280,748,014.92 × 129,106,792.08 - Step 4: Simplify right side
187,409,412.72x = 36,246,475,589,149,176 - Step 5: Solve for x
x = 36,246,475,589,149,176/187,409,412.72 - Step 6: Final answer
x = 193,407,978.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.