Finding the Fourth Proportional to 1,314,173,694.80, 1,971,132,432.60 and 344,825,310.80
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Solution
The fourth proportional to 1,314,173,694.80, 1,971,132,432.60 and 344,825,310.80 is: 517,204,351.59
Step by Step Solution
- Step 1: Write the proportion equation
1,314,173,694.80 : 1,971,132,432.60 = 344,825,310.80 : x - Step 2: Convert to fraction form
1,314,173,694.80/1,971,132,432.60 = 344,825,310.80/x - Step 3: Cross multiply
1,314,173,694.80x = 1,971,132,432.60 × 344,825,310.80 - Step 4: Simplify right side
1,314,173,694.80x = 679,696,353,699,255,040 - Step 5: Solve for x
x = 679,696,353,699,255,040/1,314,173,694.80 - Step 6: Final answer
x = 517,204,351.59
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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.