Finding the Fourth Proportional to 100,776,453.68, 139,062,639.97 and 56,119,051.26
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Solution
The fourth proportional to 100,776,453.68, 139,062,639.97 and 56,119,051.26 is: 77,439,353.50
Step by Step Solution
- Step 1: Write the proportion equation
100,776,453.68 : 139,062,639.97 = 56,119,051.26 : x - Step 2: Convert to fraction form
100,776,453.68/139,062,639.97 = 56,119,051.26/x - Step 3: Cross multiply
100,776,453.68x = 139,062,639.97 × 56,119,051.26 - Step 4: Simplify right side
100,776,453.68x = 7,804,063,420,827,355 - Step 5: Solve for x
x = 7,804,063,420,827,355/100,776,453.68 - Step 6: Final answer
x = 77,439,353.50
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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.