Finding the Fourth Proportional to 1,347,926,810.20, 2,021,890,215.30 and 880,321,715.80
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Solution
The fourth proportional to 1,347,926,810.20, 2,021,890,215.30 and 880,321,715.80 is: 1,320,482,573.70
Step by Step Solution
- Step 1: Write the proportion equation
1,347,926,810.20 : 2,021,890,215.30 = 880,321,715.80 : x - Step 2: Convert to fraction form
1,347,926,810.20/2,021,890,215.30 = 880,321,715.80/x - Step 3: Cross multiply
1,347,926,810.20x = 2,021,890,215.30 × 880,321,715.80 - Step 4: Simplify right side
1,347,926,810.20x = 1,779,913,863,492,127,232 - Step 5: Solve for x
x = 1,779,913,863,492,127,232/1,347,926,810.20 - Step 6: Final answer
x = 1,320,482,573.70
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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.