Finding the Fourth Proportional to 129,927,839.36, 194,903,739.12 and 42,489,809.90
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Solution
The fourth proportional to 129,927,839.36, 194,903,739.12 and 42,489,809.90 is: 63,738,632.65
Step by Step Solution
- Step 1: Write the proportion equation
129,927,839.36 : 194,903,739.12 = 42,489,809.90 : x - Step 2: Convert to fraction form
129,927,839.36/194,903,739.12 = 42,489,809.90/x - Step 3: Cross multiply
129,927,839.36x = 194,903,739.12 × 42,489,809.90 - Step 4: Simplify right side
129,927,839.36x = 8,281,422,824,007,993 - Step 5: Solve for x
x = 8,281,422,824,007,993/129,927,839.36 - Step 6: Final answer
x = 63,738,632.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.