Finding the Fourth Proportional to 1,248,493,589.84, 1,721,540,756.94 and 795,654,557.44
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Solution
The fourth proportional to 1,248,493,589.84, 1,721,540,756.94 and 795,654,557.44 is: 1,097,123,573.74
Step by Step Solution
- Step 1: Write the proportion equation
1,248,493,589.84 : 1,721,540,756.94 = 795,654,557.44 : x - Step 2: Convert to fraction form
1,248,493,589.84/1,721,540,756.94 = 795,654,557.44/x - Step 3: Cross multiply
1,248,493,589.84x = 1,721,540,756.94 × 795,654,557.44 - Step 4: Simplify right side
1,248,493,589.84x = 1,369,751,749,078,018,560 - Step 5: Solve for x
x = 1,369,751,749,078,018,560/1,248,493,589.84 - Step 6: Final answer
x = 1,097,123,573.74
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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.