Finding the Fourth Proportional to 1,329,696,575.20, 1,994,544,862.80 and 360,348,191.20
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Solution
The fourth proportional to 1,329,696,575.20, 1,994,544,862.80 and 360,348,191.20 is: 540,522,286.80
Step by Step Solution
- Step 1: Write the proportion equation
1,329,696,575.20 : 1,994,544,862.80 = 360,348,191.20 : x - Step 2: Convert to fraction form
1,329,696,575.20/1,994,544,862.80 = 360,348,191.20/x - Step 3: Cross multiply
1,329,696,575.20x = 1,994,544,862.80 × 360,348,191.20 - Step 4: Simplify right side
1,329,696,575.20x = 718,730,633,577,232,128 - Step 5: Solve for x
x = 718,730,633,577,232,128/1,329,696,575.20 - Step 6: Final answer
x = 540,522,286.80
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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.