Finding the Fourth Proportional to 7,851,742,537.12, 10,835,230,306.72 and 4,331,476,420
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Solution
The fourth proportional to 7,851,742,537.12, 10,835,230,306.72 and 4,331,476,420 is: 5,977,341,253.48
Step by Step Solution
- Step 1: Write the proportion equation
7,851,742,537.12 : 10,835,230,306.72 = 4,331,476,420 : x - Step 2: Convert to fraction form
7,851,742,537.12/10,835,230,306.72 = 4,331,476,420/x - Step 3: Cross multiply
7,851,742,537.12x = 10,835,230,306.72 × 4,331,476,420 - Step 4: Simplify right side
7,851,742,537.12x = 46,932,544,578,827,042,816 - Step 5: Solve for x
x = 46,932,544,578,827,042,816/7,851,742,537.12 - Step 6: Final answer
x = 5,977,341,253.48
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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.