Finding the Fourth Proportional to 2,988,044,912.40, 4,482,067,368.60 and 917,763,352.80
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Solution
The fourth proportional to 2,988,044,912.40, 4,482,067,368.60 and 917,763,352.80 is: 1,376,645,029.20
Step by Step Solution
- Step 1: Write the proportion equation
2,988,044,912.40 : 4,482,067,368.60 = 917,763,352.80 : x - Step 2: Convert to fraction form
2,988,044,912.40/4,482,067,368.60 = 917,763,352.80/x - Step 3: Cross multiply
2,988,044,912.40x = 4,482,067,368.60 × 917,763,352.80 - Step 4: Simplify right side
2,988,044,912.40x = 4,113,477,175,681,809,408 - Step 5: Solve for x
x = 4,113,477,175,681,809,408/2,988,044,912.40 - Step 6: Final answer
x = 1,376,645,029.20
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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.