Finding the Fourth Proportional to 1,824,056,107.72, 2,517,201,137.82 and 988,681,244.20
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Solution
The fourth proportional to 1,824,056,107.72, 2,517,201,137.82 and 988,681,244.20 is: 1,364,382,127.45
Step by Step Solution
- Step 1: Write the proportion equation
1,824,056,107.72 : 2,517,201,137.82 = 988,681,244.20 : x - Step 2: Convert to fraction form
1,824,056,107.72/2,517,201,137.82 = 988,681,244.20/x - Step 3: Cross multiply
1,824,056,107.72x = 2,517,201,137.82 × 988,681,244.20 - Step 4: Simplify right side
1,824,056,107.72x = 2,488,709,552,841,533,440 - Step 5: Solve for x
x = 2,488,709,552,841,533,440/1,824,056,107.72 - Step 6: Final answer
x = 1,364,382,127.45
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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.