Finding the Fourth Proportional to 39,505,959,756.80, 54,518,278,451.99 and 21,441,476,246.53
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Solution
The fourth proportional to 39,505,959,756.80, 54,518,278,451.99 and 21,441,476,246.53 is: 29,589,266,521.46
Step by Step Solution
- Step 1: Write the proportion equation
39,505,959,756.80 : 54,518,278,451.99 = 21,441,476,246.53 : x - Step 2: Convert to fraction form
39,505,959,756.80/54,518,278,451.99 = 21,441,476,246.53/x - Step 3: Cross multiply
39,505,959,756.80x = 54,518,278,451.99 × 21,441,476,246.53 - Step 4: Simplify right side
39,505,959,756.80x = 1,168,952,372,430,051,868,672 - Step 5: Solve for x
x = 1,168,952,372,430,051,868,672/39,505,959,756.80 - Step 6: Final answer
x = 29,589,266,521.46
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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.