Finding the Fourth Proportional to 1,145,212,314.80, 1,717,689,830.34 and 316,283,799.92
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Solution
The fourth proportional to 1,145,212,314.80, 1,717,689,830.34 and 316,283,799.92 is: 474,390,171.68
Step by Step Solution
- Step 1: Write the proportion equation
1,145,212,314.80 : 1,717,689,830.34 = 316,283,799.92 : x - Step 2: Convert to fraction form
1,145,212,314.80/1,717,689,830.34 = 316,283,799.92/x - Step 3: Cross multiply
1,145,212,314.80x = 1,717,689,830.34 × 316,283,799.92 - Step 4: Simplify right side
1,145,212,314.80x = 543,277,466,623,875,328 - Step 5: Solve for x
x = 543,277,466,623,875,328/1,145,212,314.80 - Step 6: Final answer
x = 474,390,171.68
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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.