Finding the Fourth Proportional to 268,019,743.80, 402,029,615.70 and 214,272,031.80
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Solution
The fourth proportional to 268,019,743.80, 402,029,615.70 and 214,272,031.80 is: 321,408,047.70
Step by Step Solution
- Step 1: Write the proportion equation
268,019,743.80 : 402,029,615.70 = 214,272,031.80 : x - Step 2: Convert to fraction form
268,019,743.80/402,029,615.70 = 214,272,031.80/x - Step 3: Cross multiply
268,019,743.80x = 402,029,615.70 × 214,272,031.80 - Step 4: Simplify right side
268,019,743.80x = 86,143,702,599,812,176 - Step 5: Solve for x
x = 86,143,702,599,812,176/268,019,743.80 - Step 6: Final answer
x = 321,408,047.70
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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.