Finding the Fourth Proportional to 253,211,972.60, 349,451,298.96 and 141,713,988.68
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Solution
The fourth proportional to 253,211,972.60, 349,451,298.96 and 141,713,988.68 is: 195,575,813.09
Step by Step Solution
- Step 1: Write the proportion equation
253,211,972.60 : 349,451,298.96 = 141,713,988.68 : x - Step 2: Convert to fraction form
253,211,972.60/349,451,298.96 = 141,713,988.68/x - Step 3: Cross multiply
253,211,972.60x = 349,451,298.96 × 141,713,988.68 - Step 4: Simplify right side
253,211,972.60x = 49,522,137,425,028,736 - Step 5: Solve for x
x = 49,522,137,425,028,736/253,211,972.60 - Step 6: Final answer
x = 195,575,813.09
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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.