Finding the Fourth Proportional to 1,306,386,905.20, 1,959,580,357.80 and 1,276,153,817.20
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Solution
The fourth proportional to 1,306,386,905.20, 1,959,580,357.80 and 1,276,153,817.20 is: 1,914,230,725.80
Step by Step Solution
- Step 1: Write the proportion equation
1,306,386,905.20 : 1,959,580,357.80 = 1,276,153,817.20 : x - Step 2: Convert to fraction form
1,306,386,905.20/1,959,580,357.80 = 1,276,153,817.20/x - Step 3: Cross multiply
1,306,386,905.20x = 1,959,580,357.80 × 1,276,153,817.20 - Step 4: Simplify right side
1,306,386,905.20x = 2,500,725,953,716,611,584 - Step 5: Solve for x
x = 2,500,725,953,716,611,584/1,306,386,905.20 - Step 6: Final answer
x = 1,914,230,725.80
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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.