Finding the Fourth Proportional to 256,871,663.62, 354,483,124.41 and 139,396,994.18
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Solution
The fourth proportional to 256,871,663.62, 354,483,124.41 and 139,396,994.18 is: 192,367,976.03
Step by Step Solution
- Step 1: Write the proportion equation
256,871,663.62 : 354,483,124.41 = 139,396,994.18 : x - Step 2: Convert to fraction form
256,871,663.62/354,483,124.41 = 139,396,994.18/x - Step 3: Cross multiply
256,871,663.62x = 354,483,124.41 × 139,396,994.18 - Step 4: Simplify right side
256,871,663.62x = 49,413,882,030,288,992 - Step 5: Solve for x
x = 49,413,882,030,288,992/256,871,663.62 - Step 6: Final answer
x = 192,367,976.03
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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.