Finding the Fourth Proportional to 21,565,376,021.53, 32,351,539,998.15 and 6,642,534,647.75
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Solution
The fourth proportional to 21,565,376,021.53, 32,351,539,998.15 and 6,642,534,647.75 is: 9,964,872,633.39
Step by Step Solution
- Step 1: Write the proportion equation
21,565,376,021.53 : 32,351,539,998.15 = 6,642,534,647.75 : x - Step 2: Convert to fraction form
21,565,376,021.53/32,351,539,998.15 = 6,642,534,647.75/x - Step 3: Cross multiply
21,565,376,021.53x = 32,351,539,998.15 × 6,642,534,647.75 - Step 4: Simplify right side
21,565,376,021.53x = 214,896,225,345,781,366,784 - Step 5: Solve for x
x = 214,896,225,345,781,366,784/21,565,376,021.53 - Step 6: Final answer
x = 9,964,872,633.39
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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.