Finding the Fourth Proportional to 257,493,671.31, 355,330,453.95 and 145,992,015.12
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Solution
The fourth proportional to 257,493,671.31, 355,330,453.95 and 145,992,015.12 is: 201,462,850.49
Step by Step Solution
- Step 1: Write the proportion equation
257,493,671.31 : 355,330,453.95 = 145,992,015.12 : x - Step 2: Convert to fraction form
257,493,671.31/355,330,453.95 = 145,992,015.12/x - Step 3: Cross multiply
257,493,671.31x = 355,330,453.95 × 145,992,015.12 - Step 4: Simplify right side
257,493,671.31x = 51,875,409,005,664,864 - Step 5: Solve for x
x = 51,875,409,005,664,864/257,493,671.31 - Step 6: Final answer
x = 201,462,850.49
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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.