Finding the Fourth Proportional to 2,815,660,551.49, 3,885,615,408.84 and 1,528,172,439.18
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Solution
The fourth proportional to 2,815,660,551.49, 3,885,615,408.84 and 1,528,172,439.18 is: 2,108,880,054.41
Step by Step Solution
- Step 1: Write the proportion equation
2,815,660,551.49 : 3,885,615,408.84 = 1,528,172,439.18 : x - Step 2: Convert to fraction form
2,815,660,551.49/3,885,615,408.84 = 1,528,172,439.18/x - Step 3: Cross multiply
2,815,660,551.49x = 3,885,615,408.84 × 1,528,172,439.18 - Step 4: Simplify right side
2,815,660,551.49x = 5,937,890,377,033,457,664 - Step 5: Solve for x
x = 5,937,890,377,033,457,664/2,815,660,551.49 - Step 6: Final answer
x = 2,108,880,054.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.