Finding the Fourth Proportional to 42,318,868.44, 63,484,280.58 and 13,558,276.20
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Solution
The fourth proportional to 42,318,868.44, 63,484,280.58 and 13,558,276.20 is: 20,339,329.53
Step by Step Solution
- Step 1: Write the proportion equation
42,318,868.44 : 63,484,280.58 = 13,558,276.20 : x - Step 2: Convert to fraction form
42,318,868.44/63,484,280.58 = 13,558,276.20/x - Step 3: Cross multiply
42,318,868.44x = 63,484,280.58 × 13,558,276.20 - Step 4: Simplify right side
42,318,868.44x = 860,737,410,461,936.12 - Step 5: Solve for x
x = 860,737,410,461,936.12/42,318,868.44 - Step 6: Final answer
x = 20,339,329.53
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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.