Finding the Fourth Proportional to 478,461,882.84, 660,277,296.54 and 258,445,311
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Solution
The fourth proportional to 478,461,882.84, 660,277,296.54 and 258,445,311 is: 356,654,474.20
Step by Step Solution
- Step 1: Write the proportion equation
478,461,882.84 : 660,277,296.54 = 258,445,311 : x - Step 2: Convert to fraction form
478,461,882.84/660,277,296.54 = 258,445,311/x - Step 3: Cross multiply
478,461,882.84x = 660,277,296.54 × 258,445,311 - Step 4: Simplify right side
478,461,882.84x = 170,645,571,250,519,520 - Step 5: Solve for x
x = 170,645,571,250,519,520/478,461,882.84 - Step 6: Final answer
x = 356,654,474.20
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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.