Finding the Fourth Proportional to 7,138,411,315.80, 10,707,616,973.70 and 5,760,916,243.80
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Solution
The fourth proportional to 7,138,411,315.80, 10,707,616,973.70 and 5,760,916,243.80 is: 8,641,374,365.70
Step by Step Solution
- Step 1: Write the proportion equation
7,138,411,315.80 : 10,707,616,973.70 = 5,760,916,243.80 : x - Step 2: Convert to fraction form
7,138,411,315.80/10,707,616,973.70 = 5,760,916,243.80/x - Step 3: Cross multiply
7,138,411,315.80x = 10,707,616,973.70 × 5,760,916,243.80 - Step 4: Simplify right side
7,138,411,315.80x = 61,685,684,556,176,932,864 - Step 5: Solve for x
x = 61,685,684,556,176,932,864/7,138,411,315.80 - Step 6: Final answer
x = 8,641,374,365.70
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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.