Finding the Fourth Proportional to 207,963,027.99, 286,997,944.50 and 115,143,533.10
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Solution
The fourth proportional to 207,963,027.99, 286,997,944.50 and 115,143,533.10 is: 158,903,039.84
Step by Step Solution
- Step 1: Write the proportion equation
207,963,027.99 : 286,997,944.50 = 115,143,533.10 : x - Step 2: Convert to fraction form
207,963,027.99/286,997,944.50 = 115,143,533.10/x - Step 3: Cross multiply
207,963,027.99x = 286,997,944.50 × 115,143,533.10 - Step 4: Simplify right side
207,963,027.99x = 33,045,957,322,167,712 - Step 5: Solve for x
x = 33,045,957,322,167,712/207,963,027.99 - Step 6: Final answer
x = 158,903,039.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.