Finding the Fourth Proportional to 1,404,103,693.70, 2,106,155,540.55 and 678,509,581.70
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Solution
The fourth proportional to 1,404,103,693.70, 2,106,155,540.55 and 678,509,581.70 is: 1,017,764,372.55
Step by Step Solution
- Step 1: Write the proportion equation
1,404,103,693.70 : 2,106,155,540.55 = 678,509,581.70 : x - Step 2: Convert to fraction form
1,404,103,693.70/2,106,155,540.55 = 678,509,581.70/x - Step 3: Cross multiply
1,404,103,693.70x = 2,106,155,540.55 × 678,509,581.70 - Step 4: Simplify right side
1,404,103,693.70x = 1,429,046,714,813,718,016 - Step 5: Solve for x
x = 1,429,046,714,813,718,016/1,404,103,693.70 - Step 6: Final answer
x = 1,017,764,372.55
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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.