Finding the Fourth Proportional to 3,878,079,551.97, 5,817,936,419.24 and 1,257,679,333.05
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Solution
The fourth proportional to 3,878,079,551.97, 5,817,936,419.24 and 1,257,679,333.05 is: 1,886,783,986.10
Step by Step Solution
- Step 1: Write the proportion equation
3,878,079,551.97 : 5,817,936,419.24 = 1,257,679,333.05 : x - Step 2: Convert to fraction form
3,878,079,551.97/5,817,936,419.24 = 1,257,679,333.05/x - Step 3: Cross multiply
3,878,079,551.97x = 5,817,936,419.24 × 1,257,679,333.05 - Step 4: Simplify right side
3,878,079,551.97x = 7,317,098,395,470,779,392 - Step 5: Solve for x
x = 7,317,098,395,470,779,392/3,878,079,551.97 - Step 6: Final answer
x = 1,886,783,986.10
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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.