Finding the Fourth Proportional to 876,785,626.35, 1,209,954,525.12 and 474,889,377.36
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Solution
The fourth proportional to 876,785,626.35, 1,209,954,525.12 and 474,889,377.36 is: 655,342,119.90
Step by Step Solution
- Step 1: Write the proportion equation
876,785,626.35 : 1,209,954,525.12 = 474,889,377.36 : x - Step 2: Convert to fraction form
876,785,626.35/1,209,954,525.12 = 474,889,377.36/x - Step 3: Cross multiply
876,785,626.35x = 1,209,954,525.12 × 474,889,377.36 - Step 4: Simplify right side
876,785,626.35x = 574,594,551,072,688,512 - Step 5: Solve for x
x = 574,594,551,072,688,512/876,785,626.35 - Step 6: Final answer
x = 655,342,119.90
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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.