Finding the Fourth Proportional to 411,251,420.79, 567,429,618.65 and 232,639,415.37
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Solution
The fourth proportional to 411,251,420.79, 567,429,618.65 and 232,639,415.37 is: 320,987,328.12
Step by Step Solution
- Step 1: Write the proportion equation
411,251,420.79 : 567,429,618.65 = 232,639,415.37 : x - Step 2: Convert to fraction form
411,251,420.79/567,429,618.65 = 232,639,415.37/x - Step 3: Cross multiply
411,251,420.79x = 567,429,618.65 × 232,639,415.37 - Step 4: Simplify right side
411,251,420.79x = 132,006,494,745,194,848 - Step 5: Solve for x
x = 132,006,494,745,194,848/411,251,420.79 - Step 6: Final answer
x = 320,987,328.12
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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.