Finding the Fourth Proportional to 1,480,345,265.70, 2,220,517,898.55 and 1,247,892,972.30
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Solution
The fourth proportional to 1,480,345,265.70, 2,220,517,898.55 and 1,247,892,972.30 is: 1,871,839,458.45
Step by Step Solution
- Step 1: Write the proportion equation
1,480,345,265.70 : 2,220,517,898.55 = 1,247,892,972.30 : x - Step 2: Convert to fraction form
1,480,345,265.70/2,220,517,898.55 = 1,247,892,972.30/x - Step 3: Cross multiply
1,480,345,265.70x = 2,220,517,898.55 × 1,247,892,972.30 - Step 4: Simplify right side
1,480,345,265.70x = 2,770,968,680,466,909,696 - Step 5: Solve for x
x = 2,770,968,680,466,909,696/1,480,345,265.70 - Step 6: Final answer
x = 1,871,839,458.45
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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.