Finding the Fourth Proportional to 470,247,511.84, 648,863,125.62 and 261,375,255.64
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Solution
The fourth proportional to 470,247,511.84, 648,863,125.62 and 261,375,255.64 is: 360,654,253.48
Step by Step Solution
- Step 1: Write the proportion equation
470,247,511.84 : 648,863,125.62 = 261,375,255.64 : x - Step 2: Convert to fraction form
470,247,511.84/648,863,125.62 = 261,375,255.64/x - Step 3: Cross multiply
470,247,511.84x = 648,863,125.62 × 261,375,255.64 - Step 4: Simplify right side
470,247,511.84x = 169,596,765,334,296,928 - Step 5: Solve for x
x = 169,596,765,334,296,928/470,247,511.84 - Step 6: Final answer
x = 360,654,253.48
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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.