Finding the Fourth Proportional to 4,709,620,919.20, 7,064,431,378.80 and 1,438,064,874.40
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Solution
The fourth proportional to 4,709,620,919.20, 7,064,431,378.80 and 1,438,064,874.40 is: 2,157,097,311.60
Step by Step Solution
- Step 1: Write the proportion equation
4,709,620,919.20 : 7,064,431,378.80 = 1,438,064,874.40 : x - Step 2: Convert to fraction form
4,709,620,919.20/7,064,431,378.80 = 1,438,064,874.40/x - Step 3: Cross multiply
4,709,620,919.20x = 7,064,431,378.80 × 1,438,064,874.40 - Step 4: Simplify right side
4,709,620,919.20x = 10,159,110,623,461,441,536 - Step 5: Solve for x
x = 10,159,110,623,461,441,536/4,709,620,919.20 - Step 6: Final answer
x = 2,157,097,311.60
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1.5x scale
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.