Finding the Fourth Proportional to 90,926,047,753.78, 136,387,571,121.66 and 27,183,542,860.32
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Solution
The fourth proportional to 90,926,047,753.78, 136,387,571,121.66 and 27,183,542,860.32 is: 40,774,865,693.49
Step by Step Solution
- Step 1: Write the proportion equation
90,926,047,753.78 : 136,387,571,121.66 = 27,183,542,860.32 : x - Step 2: Convert to fraction form
90,926,047,753.78/136,387,571,121.66 = 27,183,542,860.32/x - Step 3: Cross multiply
90,926,047,753.78x = 136,387,571,121.66 × 27,183,542,860.32 - Step 4: Simplify right side
90,926,047,753.78x = 3,707,497,385,200,586,850,304 - Step 5: Solve for x
x = 3,707,497,385,200,586,850,304/90,926,047,753.78 - Step 6: Final answer
x = 40,774,865,693.49
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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.