Finding the Fourth Proportional to 785,019,678.74, 1,083,334,321.26 and 432,608,313.92
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Solution
The fourth proportional to 785,019,678.74, 1,083,334,321.26 and 432,608,313.92 is: 597,003,421.47
Step by Step Solution
- Step 1: Write the proportion equation
785,019,678.74 : 1,083,334,321.26 = 432,608,313.92 : x - Step 2: Convert to fraction form
785,019,678.74/1,083,334,321.26 = 432,608,313.92/x - Step 3: Cross multiply
785,019,678.74x = 1,083,334,321.26 × 432,608,313.92 - Step 4: Simplify right side
785,019,678.74x = 468,659,434,131,956,224 - Step 5: Solve for x
x = 468,659,434,131,956,224/785,019,678.74 - Step 6: Final answer
x = 597,003,421.47
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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.