Finding the Fourth Proportional to 408,811,995.84, 564,162,849.54 and 232,599,986.94
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Solution
The fourth proportional to 408,811,995.84, 564,162,849.54 and 232,599,986.94 is: 320,989,287.91
Step by Step Solution
- Step 1: Write the proportion equation
408,811,995.84 : 564,162,849.54 = 232,599,986.94 : x - Step 2: Convert to fraction form
408,811,995.84/564,162,849.54 = 232,599,986.94/x - Step 3: Cross multiply
408,811,995.84x = 564,162,849.54 × 232,599,986.94 - Step 4: Simplify right side
408,811,995.84x = 131,224,271,435,037,168 - Step 5: Solve for x
x = 131,224,271,435,037,168/408,811,995.84 - Step 6: Final answer
x = 320,989,287.91
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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.