Finding the Fourth Proportional to 1,485,240,325.20, 2,227,860,487.80 and 1,317,358,113.30
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Solution
The fourth proportional to 1,485,240,325.20, 2,227,860,487.80 and 1,317,358,113.30 is: 1,976,037,169.95
Step by Step Solution
- Step 1: Write the proportion equation
1,485,240,325.20 : 2,227,860,487.80 = 1,317,358,113.30 : x - Step 2: Convert to fraction form
1,485,240,325.20/2,227,860,487.80 = 1,317,358,113.30/x - Step 3: Cross multiply
1,485,240,325.20x = 2,227,860,487.80 × 1,317,358,113.30 - Step 4: Simplify right side
1,485,240,325.20x = 2,934,890,088,903,825,920 - Step 5: Solve for x
x = 2,934,890,088,903,825,920/1,485,240,325.20 - Step 6: Final answer
x = 1,976,037,169.95
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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.