Finding the Fourth Proportional to 330,721,353.88, 495,748,549.50 and 207,987,385.84
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Solution
The fourth proportional to 330,721,353.88, 495,748,549.50 and 207,987,385.84 is: 311,771,355.66
Step by Step Solution
- Step 1: Write the proportion equation
330,721,353.88 : 495,748,549.50 = 207,987,385.84 : x - Step 2: Convert to fraction form
330,721,353.88/495,748,549.50 = 207,987,385.84/x - Step 3: Cross multiply
330,721,353.88x = 495,748,549.50 × 207,987,385.84 - Step 4: Simplify right side
330,721,353.88x = 103,109,444,844,476,848 - Step 5: Solve for x
x = 103,109,444,844,476,848/330,721,353.88 - Step 6: Final answer
x = 311,771,355.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.