Finding the Fourth Proportional to 1,023,948,818.71, 1,412,803,631.47 and 622,054,534.08
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Solution
The fourth proportional to 1,023,948,818.71, 1,412,803,631.47 and 622,054,534.08 is: 858,285,969.63
Step by Step Solution
- Step 1: Write the proportion equation
1,023,948,818.71 : 1,412,803,631.47 = 622,054,534.08 : x - Step 2: Convert to fraction form
1,023,948,818.71/1,412,803,631.47 = 622,054,534.08/x - Step 3: Cross multiply
1,023,948,818.71x = 1,412,803,631.47 × 622,054,534.08 - Step 4: Simplify right side
1,023,948,818.71x = 878,840,904,720,603,008 - Step 5: Solve for x
x = 878,840,904,720,603,008/1,023,948,818.71 - Step 6: Final answer
x = 858,285,969.63
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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.