Finding the Fourth Proportional to 1,616,988,806.80, 2,425,483,210.20 and 891,394,694.80
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Solution
The fourth proportional to 1,616,988,806.80, 2,425,483,210.20 and 891,394,694.80 is: 1,337,092,042.20
Step by Step Solution
- Step 1: Write the proportion equation
1,616,988,806.80 : 2,425,483,210.20 = 891,394,694.80 : x - Step 2: Convert to fraction form
1,616,988,806.80/2,425,483,210.20 = 891,394,694.80/x - Step 3: Cross multiply
1,616,988,806.80x = 2,425,483,210.20 × 891,394,694.80 - Step 4: Simplify right side
1,616,988,806.80x = 2,162,062,865,898,753,024 - Step 5: Solve for x
x = 2,162,062,865,898,753,024/1,616,988,806.80 - Step 6: Final answer
x = 1,337,092,042.20
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1.5x scale
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.