Finding the Fourth Proportional to 1,306,962,816.36, 1,803,562,876.04 and 712,235,164.88
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Solution
The fourth proportional to 1,306,962,816.36, 1,803,562,876.04 and 712,235,164.88 is: 982,859,562.88
Step by Step Solution
- Step 1: Write the proportion equation
1,306,962,816.36 : 1,803,562,876.04 = 712,235,164.88 : x - Step 2: Convert to fraction form
1,306,962,816.36/1,803,562,876.04 = 712,235,164.88/x - Step 3: Cross multiply
1,306,962,816.36x = 1,803,562,876.04 × 712,235,164.88 - Step 4: Simplify right side
1,306,962,816.36x = 1,284,560,902,387,796,480 - Step 5: Solve for x
x = 1,284,560,902,387,796,480/1,306,962,816.36 - Step 6: Final answer
x = 982,859,562.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.