Finding the Fourth Proportional to 1,368,577,070.60, 2,052,865,605.90 and 641,639,265.80
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Solution
The fourth proportional to 1,368,577,070.60, 2,052,865,605.90 and 641,639,265.80 is: 962,458,898.70
Step by Step Solution
- Step 1: Write the proportion equation
1,368,577,070.60 : 2,052,865,605.90 = 641,639,265.80 : x - Step 2: Convert to fraction form
1,368,577,070.60/2,052,865,605.90 = 641,639,265.80/x - Step 3: Cross multiply
1,368,577,070.60x = 2,052,865,605.90 × 641,639,265.80 - Step 4: Simplify right side
1,368,577,070.60x = 1,317,199,180,155,748,096 - Step 5: Solve for x
x = 1,317,199,180,155,748,096/1,368,577,070.60 - Step 6: Final answer
x = 962,458,898.70
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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.