Finding the Fourth Proportional to 48,385,674.80, 72,686,646.60 and 40,423,050.80
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Solution
The fourth proportional to 48,385,674.80, 72,686,646.60 and 40,423,050.80 is: 60,724,915.38
Step by Step Solution
- Step 1: Write the proportion equation
48,385,674.80 : 72,686,646.60 = 40,423,050.80 : x - Step 2: Convert to fraction form
48,385,674.80/72,686,646.60 = 40,423,050.80/x - Step 3: Cross multiply
48,385,674.80x = 72,686,646.60 × 40,423,050.80 - Step 4: Simplify right side
48,385,674.80x = 2,938,216,007,993,447 - Step 5: Solve for x
x = 2,938,216,007,993,447/48,385,674.80 - Step 6: Final answer
x = 60,724,915.38
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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.