Finding the Fourth Proportional to 558,813,896.37, 771,128,430.36 and 307,904,247.03
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Solution
The fourth proportional to 558,813,896.37, 771,128,430.36 and 307,904,247.03 is: 424,888,715.65
Step by Step Solution
- Step 1: Write the proportion equation
558,813,896.37 : 771,128,430.36 = 307,904,247.03 : x - Step 2: Convert to fraction form
558,813,896.37/771,128,430.36 = 307,904,247.03/x - Step 3: Cross multiply
558,813,896.37x = 771,128,430.36 × 307,904,247.03 - Step 4: Simplify right side
558,813,896.37x = 237,433,718,713,421,568 - Step 5: Solve for x
x = 237,433,718,713,421,568/558,813,896.37 - Step 6: Final answer
x = 424,888,715.65
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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.