Finding the Fourth Proportional to 12,777,306,918.12, 17,632,358,703.62 and 7,138,565,118.84
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Solution
The fourth proportional to 12,777,306,918.12, 17,632,358,703.62 and 7,138,565,118.84 is: 9,851,038,376.96
Step by Step Solution
- Step 1: Write the proportion equation
12,777,306,918.12 : 17,632,358,703.62 = 7,138,565,118.84 : x - Step 2: Convert to fraction form
12,777,306,918.12/17,632,358,703.62 = 7,138,565,118.84/x - Step 3: Cross multiply
12,777,306,918.12x = 17,632,358,703.62 × 7,138,565,118.84 - Step 4: Simplify right side
12,777,306,918.12x = 125,869,740,804,536,614,912 - Step 5: Solve for x
x = 125,869,740,804,536,614,912/12,777,306,918.12 - Step 6: Final answer
x = 9,851,038,376.96
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1.5x scale
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.