Finding the Fourth Proportional to 1,465,776,209.20, 2,198,664,313.80 and 1,320,657,386.80
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Solution
The fourth proportional to 1,465,776,209.20, 2,198,664,313.80 and 1,320,657,386.80 is: 1,980,986,080.20
Step by Step Solution
- Step 1: Write the proportion equation
1,465,776,209.20 : 2,198,664,313.80 = 1,320,657,386.80 : x - Step 2: Convert to fraction form
1,465,776,209.20/2,198,664,313.80 = 1,320,657,386.80/x - Step 3: Cross multiply
1,465,776,209.20x = 2,198,664,313.80 × 1,320,657,386.80 - Step 4: Simplify right side
1,465,776,209.20x = 2,903,682,267,113,523,200 - Step 5: Solve for x
x = 2,903,682,267,113,523,200/1,465,776,209.20 - Step 6: Final answer
x = 1,980,986,080.20
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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.