Finding the Fourth Proportional to 12,983,543.60, 19,477,087.68 and 5,408,737.88
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Solution
The fourth proportional to 12,983,543.60, 19,477,087.68 and 5,408,737.88 is: 8,113,845.12
Step by Step Solution
- Step 1: Write the proportion equation
12,983,543.60 : 19,477,087.68 = 5,408,737.88 : x - Step 2: Convert to fraction form
12,983,543.60/19,477,087.68 = 5,408,737.88/x - Step 3: Cross multiply
12,983,543.60x = 19,477,087.68 × 5,408,737.88 - Step 4: Simplify right side
12,983,543.60x = 105,346,461,829,511.88 - Step 5: Solve for x
x = 105,346,461,829,511.88/12,983,543.60 - Step 6: Final answer
x = 8,113,845.12
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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.