Finding the Fourth Proportional to 1,705,645,197.36, 2,558,467,796.76 and 615,128,265.36
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Solution
The fourth proportional to 1,705,645,197.36, 2,558,467,796.76 and 615,128,265.36 is: 922,692,398.30
Step by Step Solution
- Step 1: Write the proportion equation
1,705,645,197.36 : 2,558,467,796.76 = 615,128,265.36 : x - Step 2: Convert to fraction form
1,705,645,197.36/2,558,467,796.76 = 615,128,265.36/x - Step 3: Cross multiply
1,705,645,197.36x = 2,558,467,796.76 × 615,128,265.36 - Step 4: Simplify right side
1,705,645,197.36x = 1,573,785,857,800,400,128 - Step 5: Solve for x
x = 1,573,785,857,800,400,128/1,705,645,197.36 - Step 6: Final answer
x = 922,692,398.30
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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.