Finding the Fourth Proportional to 824,489,910.80, 1,236,734,866.20 and 695,349,747.80
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Solution
The fourth proportional to 824,489,910.80, 1,236,734,866.20 and 695,349,747.80 is: 1,043,024,621.70
Step by Step Solution
- Step 1: Write the proportion equation
824,489,910.80 : 1,236,734,866.20 = 695,349,747.80 : x - Step 2: Convert to fraction form
824,489,910.80/1,236,734,866.20 = 695,349,747.80/x - Step 3: Cross multiply
824,489,910.80x = 1,236,734,866.20 × 695,349,747.80 - Step 4: Simplify right side
824,489,910.80x = 859,963,277,307,636,736 - Step 5: Solve for x
x = 859,963,277,307,636,736/824,489,910.80 - Step 6: Final answer
x = 1,043,024,621.70
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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.