Finding the Fourth Proportional to 280,683,431.63, 387,462,401.97 and 174,889,116.85
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Solution
The fourth proportional to 280,683,431.63, 387,462,401.97 and 174,889,116.85 is: 241,421,294.09
Step by Step Solution
- Step 1: Write the proportion equation
280,683,431.63 : 387,462,401.97 = 174,889,116.85 : x - Step 2: Convert to fraction form
280,683,431.63/387,462,401.97 = 174,889,116.85/x - Step 3: Cross multiply
280,683,431.63x = 387,462,401.97 × 174,889,116.85 - Step 4: Simplify right side
280,683,431.63x = 67,762,957,293,113,000 - Step 5: Solve for x
x = 67,762,957,293,113,000/280,683,431.63 - Step 6: Final answer
x = 241,421,294.09
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1.5x scale
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.