Finding the Fourth Proportional to 439,716,763.21, 658,570,251.12 and 209,847,273.07
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Solution
The fourth proportional to 439,716,763.21, 658,570,251.12 and 209,847,273.07 is: 314,291,341.35
Step by Step Solution
- Step 1: Write the proportion equation
439,716,763.21 : 658,570,251.12 = 209,847,273.07 : x - Step 2: Convert to fraction form
439,716,763.21/658,570,251.12 = 209,847,273.07/x - Step 3: Cross multiply
439,716,763.21x = 658,570,251.12 × 209,847,273.07 - Step 4: Simplify right side
439,716,763.21x = 138,199,171,322,557,104 - Step 5: Solve for x
x = 138,199,171,322,557,104/439,716,763.21 - Step 6: Final answer
x = 314,291,341.35
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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.